157806 has 24 divisors (see below), whose sum is σ = 373464. Its totient is φ = 47760.

The previous prime is 157799. The next prime is 157813. The reversal of 157806 is 608751.

157806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (157799) and next prime (157813).

It is a Curzon number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 157806.

It is a congruent number.

It is an unprimeable number.

157806 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201 + ... + 596.

It is an arithmetic number, because the mean of its divisors is an integer number (15561).

2¹⁵⁷⁸⁰⁶ is an apocalyptic number.

157806 is an abundant number, since it is smaller than the sum of its proper divisors (215658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157806 is a wasteful number, since it uses less digits than its factorization.

157806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 157806 is about 397.2480333494. The cubic root of 157806 is about 54.0390663808.

The spelling of 157806 in words is "one hundred fifty-seven thousand, eight hundred six".