157158873 has 10 divisors (see below), whose sum is σ = 234768314. Its totient is φ = 104772528.

The previous prime is 157158847. The next prime is 157158901. The reversal of 157158873 is 378851751.

157158873 is a `hidden beast` number, since 1 + 571 + 5 + 8 + 8 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 156050064 + 1108809 = 12492^2 + 1053^2 .

It is not a de Polignac number, because 157158873 - 2⁹ = 157158361 is a prime.

It is a super-2 number, since 2×157158873² = 49397822725260258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157158803) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 970036 + ... + 970197.

Almost surely, 2^157158873 is an apocalyptic number.

It is an amenable number.

157158873 is a deficient number, since it is larger than the sum of its proper divisors (77609441).

157158873 is an equidigital number, since it uses as much as digits as its factorization.

157158873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940245 (or 1940236 counting only the distinct ones).

The product of its digits is 235200, while the sum is 45.

The square root of 157158873 is about 12536.3022059936. The cubic root of 157158873 is about 539.6509781667.

The spelling of 157158873 in words is "one hundred fifty-seven million, one hundred fifty-eight thousand, eight hundred seventy-three".