157407453 has 18 divisors (see below), whose sum is σ = 264488094. Its totient is φ = 89946864.

The previous prime is 157407443. The next prime is 157407517. The reversal of 157407453 is 354704751.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 102454884 + 54952569 = 10122^2 + 7413^2 .

It is not a de Polignac number, because 157407453 - 2⁸ = 157407197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157407443) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 178026 + ... + 178907.

It is an arithmetic number, because the mean of its divisors is an integer number (14693783).

Almost surely, 2^157407453 is an apocalyptic number.

It is an amenable number.

157407453 is a deficient number, since it is larger than the sum of its proper divisors (107080641).

157407453 is a wasteful number, since it uses less digits than its factorization.

157407453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356953 (or 356943 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 157407453 is about 12546.2126954711. The cubic root of 157407453 is about 539.9353523431.

The spelling of 157407453 in words is "one hundred fifty-seven million, four hundred seven thousand, four hundred fifty-three".