164183540 has 24 divisors (see below), whose sum is σ = 347307912. Its totient is φ = 65192960.

The previous prime is 164183521. The next prime is 164183561. The reversal of 164183540 is 45381461.

It can be written as a sum of positive squares in 4 ways, for example, as 36312676 + 127870864 = 6026^2 + 11308^2 .

It is a junction number, because it is equal to n+sod(n) for n = 164183497 and 164183506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27221 + ... + 32700.

It is an arithmetic number, because the mean of its divisors is an integer number (14471163).

Almost surely, 2^164183540 is an apocalyptic number.

164183540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164183540 is an abundant number, since it is smaller than the sum of its proper divisors (183124372).

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

164183540 is a wasteful number, since it uses less digits than its factorization.

164183540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60067 (or 60065 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 164183540 is about 12813.4125040912. The cubic root of 164183540 is about 547.5744872002.

The spelling of 164183540 in words is "one hundred sixty-four million, one hundred eighty-three thousand, five hundred forty".