164907140 has 24 divisors (see below), whose sum is σ = 366676632. Its totient is φ = 62082560.

The previous prime is 164907133. The next prime is 164907143. The reversal of 164907140 is 41709461.

It can be written as a sum of positive squares in 4 ways, for example, as 29789764 + 135117376 = 5458^2 + 11624^2 .

It is a junction number, because it is equal to n+sod(n) for n = 164907097 and 164907106.

It is not an unprimeable number, because it can be changed into a prime (164907143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242171 + ... + 242850.

It is an arithmetic number, because the mean of its divisors is an integer number (15278193).

Almost surely, 2^164907140 is an apocalyptic number.

164907140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164907140 is an abundant number, since it is smaller than the sum of its proper divisors (201769492).

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

164907140 is a wasteful number, since it uses less digits than its factorization.

164907140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485047 (or 485045 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 164907140 is about 12841.6174993651. The cubic root of 164907140 is about 548.3777431801.

The spelling of 164907140 in words is "one hundred sixty-four million, nine hundred seven thousand, one hundred forty".