157156487 has 4 divisors (see below), whose sum is σ = 158065080. Its totient is φ = 156247896.

The previous prime is 157156459. The next prime is 157156499. The reversal of 157156487 is 784651751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157156487 - 2¹⁶ = 157090951 is a prime.

It is a super-2 number, since 2×157156487² = 49396322812362338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157156187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454037 + ... + 454382.

It is an arithmetic number, because the mean of its divisors is an integer number (39516270).

Almost surely, 2^157156487 is an apocalyptic number.

157156487 is a deficient number, since it is larger than the sum of its proper divisors (908593).

157156487 is an equidigital number, since it uses as much as digits as its factorization.

157156487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908592.

The product of its digits is 235200, while the sum is 44.

The square root of 157156487 is about 12536.2070420044. The cubic root of 157156487 is about 539.6482471431.

The spelling of 157156487 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, four hundred eighty-seven".