164539634 has 16 divisors (see below), whose sum is σ = 298660608. Its totient is φ = 66368832.

The previous prime is 164539553. The next prime is 164539637. The reversal of 164539634 is 436935461.

It is a junction number, because it is equal to n+sod(n) for n = 164539591 and 164539600.

It is not an unprimeable number, because it can be changed into a prime (164539637) 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, 345434 + ... + 345909.

It is an arithmetic number, because the mean of its divisors is an integer number (18666288).

Almost surely, 2^164539634 is an apocalyptic number.

164539634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

164539634 is a deficient number, since it is larger than the sum of its proper divisors (134120974).

164539634 is a wasteful number, since it uses less digits than its factorization.

164539634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691369.

The product of its digits is 233280, while the sum is 41.

The square root of 164539634 is about 12827.3003395103. The cubic root of 164539634 is about 547.9700753546.

The spelling of 164539634 in words is "one hundred sixty-four million, five hundred thirty-nine thousand, six hundred thirty-four".