275947164 has 36 divisors (see below), whose sum is σ = 708973720. Its totient is φ = 90473760.

The previous prime is 275947163. The next prime is 275947187. The reversal of 275947164 is 461749572.

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

It is a super-2 number, since 2×275947164² = 152293674639285792, which contains 22 as substring.

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 (275947163) 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, 60634 + ... + 65025.

Almost surely, 2^275947164 is an apocalyptic number.

It is an amenable number.

275947164 is an abundant number, since it is smaller than the sum of its proper divisors (433026556).

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

275947164 is a wasteful number, since it uses less digits than its factorization.

275947164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125730 (or 125725 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 275947164 is about 16611.6574729917. The cubic root of 275947164 is about 651.0414578566.

The spelling of 275947164 in words is "two hundred seventy-five million, nine hundred forty-seven thousand, one hundred sixty-four".