157574745 has 24 divisors (see below), whose sum is σ = 273456456. Its totient is φ = 83939328.

The previous prime is 157574723. The next prime is 157574783. The reversal of 157574745 is 547475751.

157574745 is a `hidden beast` number, since 1 + 5 + 7 + 574 + 74 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 60512841 + 97061904 = 7779^2 + 9852^2 .

It is not a de Polignac number, because 157574745 - 2¹⁸ = 157312601 is a prime.

It is a super-3 number, since 3×157574745³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 157574745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50367 + ... + 53403.

It is an arithmetic number, because the mean of its divisors is an integer number (11394019).

Almost surely, 2^157574745 is an apocalyptic number.

157574745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157574745 is a deficient number, since it is larger than the sum of its proper divisors (115881711).

157574745 is a wasteful number, since it uses less digits than its factorization.

157574745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201 (or 4198 counting only the distinct ones).

The product of its digits is 686000, while the sum is 45.

The square root of 157574745 is about 12552.8779568671. The cubic root of 157574745 is about 540.1265649836.

It can be divided in two parts, 15757 and 4745, that added together give a palindrome (20502).

The spelling of 157574745 in words is "one hundred fifty-seven million, five hundred seventy-four thousand, seven hundred forty-five".