157156451 has 6 divisors (see below), whose sum is σ = 158203260. Its totient is φ = 156111696.

The previous prime is 157156411. The next prime is 157156459. The reversal of 157156451 is 154651751.

It is not a de Polignac number, because 157156451 - 2¹⁸ = 156894307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157156459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167255 + ... + 168191.

It is an arithmetic number, because the mean of its divisors is an integer number (26367210).

Almost surely, 2^157156451 is an apocalyptic number.

157156451 is a deficient number, since it is larger than the sum of its proper divisors (1046809).

157156451 is an frugal number, since it uses more digits than its factorization.

157156451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053 (or 1116 counting only the distinct ones).

The product of its digits is 21000, while the sum is 35.

The square root of 157156451 is about 12536.2056061633. The cubic root of 157156451 is about 539.6482059372.

The spelling of 157156451 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, four hundred fifty-one".