157872843 has 12 divisors (see below), whose sum is σ = 240040840. Its totient is φ = 99709056.

The previous prime is 157872833. The next prime is 157872877. The reversal of 157872843 is 348278751.

157872843 is a `hidden beast` number, since 1 + 578 + 72 + 8 + 4 + 3 = 666.

It is not a de Polignac number, because 157872843 - 2⁸ = 157872587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157872833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 461446 + ... + 461787.

Almost surely, 2^157872843 is an apocalyptic number.

157872843 is a deficient number, since it is larger than the sum of its proper divisors (82167997).

157872843 is a wasteful number, since it uses less digits than its factorization.

157872843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923258 (or 923255 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 157872843 is about 12564.7460380224. The cubic root of 157872843 is about 540.4669520651.

The spelling of 157872843 in words is "one hundred fifty-seven million, eight hundred seventy-two thousand, eight hundred forty-three".