164858157 has 12 divisors (see below), whose sum is σ = 238311840. Its totient is φ = 109820808.

The previous prime is 164858153. The next prime is 164858201. The reversal of 164858157 is 751858461.

164858157 is a `hidden beast` number, since 1 + 64 + 8 + 581 + 5 + 7 = 666.

164858157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164858157 - 2² = 164858153 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164858153) 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, 6694 + ... + 19352.

It is an arithmetic number, because the mean of its divisors is an integer number (19859320).

Almost surely, 2^164858157 is an apocalyptic number.

It is an amenable number.

164858157 is a deficient number, since it is larger than the sum of its proper divisors (73453683).

164858157 is a wasteful number, since it uses less digits than its factorization.

164858157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14112 (or 14109 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 164858157 is about 12839.7101602801. The cubic root of 164858157 is about 548.3234422222.

It can be divided in two parts, 16485 and 8157, that added together give a palindrome (24642).

The spelling of 164858157 in words is "one hundred sixty-four million, eight hundred fifty-eight thousand, one hundred fifty-seven".