164152690 has 16 divisors (see below), whose sum is σ = 318203928. Its totient is φ = 60610176.

The previous prime is 164152687. The next prime is 164152739. The reversal of 164152690 is 96251461.

It can be written as a sum of positive squares in 4 ways, for example, as 75359761 + 88792929 = 8681^2 + 9423^2 .

It is a super-2 number, since 2×164152690² = 53892211268472200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631227 + ... + 631486.

Almost surely, 2^164152690 is an apocalyptic number.

164152690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164152690 is a deficient number, since it is larger than the sum of its proper divisors (154051238).

164152690 is a wasteful number, since it uses less digits than its factorization.

164152690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262733.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 164152690 is about 12812.2086308333. The cubic root of 164152690 is about 547.5401887334.

The spelling of 164152690 in words is "one hundred sixty-four million, one hundred fifty-two thousand, six hundred ninety".