157455945 has 48 divisors (see below), whose sum is σ = 292094400. Its totient is φ = 78226560.

The previous prime is 157455943. The next prime is 157455959. The reversal of 157455945 is 549554751.

It is a happy number.

157455945 is a `hidden beast` number, since 1 + 57 + 4 + 5 + 594 + 5 = 666.

It is not a de Polignac number, because 157455945 - 2¹ = 157455943 is a prime.

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 157455945.

It is not an unprimeable number, because it can be changed into a prime (157455943) 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, 50646 + ... + 53664.

It is an arithmetic number, because the mean of its divisors is an integer number (6085300).

Almost surely, 2^157455945 is an apocalyptic number.

157455945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157455945 is a deficient number, since it is larger than the sum of its proper divisors (134638455).

157455945 is a wasteful number, since it uses less digits than its factorization.

157455945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110 (or 3107 counting only the distinct ones).

The product of its digits is 630000, while the sum is 45.

The square root of 157455945 is about 12548.1450820430. The cubic root of 157455945 is about 539.9907920241.

The spelling of 157455945 in words is "one hundred fifty-seven million, four hundred fifty-five thousand, nine hundred forty-five".