157917453 has 8 divisors (see below), whose sum is σ = 214125600. Its totient is φ = 103493808.

The previous prime is 157917449. The next prime is 157917479. The reversal of 157917453 is 354719751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157917453 - 2² = 157917449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157917413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445918 + ... + 446271.

It is an arithmetic number, because the mean of its divisors is an integer number (26765700).

Almost surely, 2^157917453 is an apocalyptic number.

It is an amenable number.

157917453 is a deficient number, since it is larger than the sum of its proper divisors (56208147).

157917453 is an equidigital number, since it uses as much as digits as its factorization.

157917453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892251.

The product of its digits is 132300, while the sum is 42.

The square root of 157917453 is about 12566.5211176363. The cubic root of 157917453 is about 540.5178537057.

The spelling of 157917453 in words is "one hundred fifty-seven million, nine hundred seventeen thousand, four hundred fifty-three".