164135590 has 32 divisors (see below), whose sum is σ = 310599360. Its totient is φ = 62329344.

The previous prime is 164135549. The next prime is 164135591. The reversal of 164135590 is 95531461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164135591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28906 + ... + 34114.

It is an arithmetic number, because the mean of its divisors is an integer number (9706230).

Almost surely, 2^164135590 is an apocalyptic number.

164135590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164135590 is a deficient number, since it is larger than the sum of its proper divisors (146463770).

164135590 is a wasteful number, since it uses less digits than its factorization.

164135590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5376.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 164135590 is about 12811.5412812042. The cubic root of 164135590 is about 547.5211754145.

The spelling of 164135590 in words is "one hundred sixty-four million, one hundred thirty-five thousand, five hundred ninety".