164875140 has 36 divisors (see below), whose sum is σ = 500121804. Its totient is φ = 43966656.

The previous prime is 164875111. The next prime is 164875181. The reversal of 164875140 is 41578461.

It is a happy number.

164875140 is a `hidden beast` number, since 1 + 64 + 87 + 514 + 0 = 666.

164875140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 94012416 + 70862724 = 9696^2 + 8418^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 164875095 and 164875104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457807 + ... + 458166.

Almost surely, 2^164875140 is an apocalyptic number.

164875140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164875140 is an abundant number, since it is smaller than the sum of its proper divisors (335246664).

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

164875140 is a wasteful number, since it uses less digits than its factorization.

164875140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915988 (or 915983 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 164875140 is about 12840.3714899531. The cubic root of 164875140 is about 548.3422702407.

The spelling of 164875140 in words is "one hundred sixty-four million, eight hundred seventy-five thousand, one hundred forty".