157444245 has 48 divisors (see below), whose sum is σ = 312923520. Its totient is φ = 71736192.

The previous prime is 157444211. The next prime is 157444247. The reversal of 157444245 is 542444751.

157444245 is a `hidden beast` number, since 1 + 574 + 4 + 42 + 45 = 666.

It is not a de Polignac number, because 157444245 - 2⁹ = 157443733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157444247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124426 + ... + 125684.

It is an arithmetic number, because the mean of its divisors is an integer number (6519240).

Almost surely, 2^157444245 is an apocalyptic number.

157444245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157444245 is a deficient number, since it is larger than the sum of its proper divisors (155479275).

157444245 is a wasteful number, since it uses less digits than its factorization.

157444245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674 (or 1671 counting only the distinct ones).

The product of its digits is 89600, while the sum is 36.

The square root of 157444245 is about 12547.6788690180. The cubic root of 157444245 is about 539.9774167510.

Adding to 157444245 its reverse (542444751), we get a palindrome (699888996).

The spelling of 157444245 in words is "one hundred fifty-seven million, four hundred forty-four thousand, two hundred forty-five".