157806943 has 16 divisors (see below), whose sum is σ = 184204800. Its totient is φ = 132400800.

The previous prime is 157806941. The next prime is 157806949. The reversal of 157806943 is 349608751.

It is not a de Polignac number, because 157806943 - 2¹ = 157806941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157806943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157806941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72988 + ... + 75118.

It is an arithmetic number, because the mean of its divisors is an integer number (11512800).

Almost surely, 2^157806943 is an apocalyptic number.

157806943 is a deficient number, since it is larger than the sum of its proper divisors (26397857).

157806943 is a wasteful number, since it uses less digits than its factorization.

157806943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 157806943 is about 12562.1233475874. The cubic root of 157806943 is about 540.3917402081.

The spelling of 157806943 in words is "one hundred fifty-seven million, eight hundred six thousand, nine hundred forty-three".