164174690 has 32 divisors (see below), whose sum is σ = 309108096. Its totient is φ = 62663040.

The previous prime is 164174677. The next prime is 164174711. The reversal of 164174690 is 96471461.

It is a happy number.

It is a super-2 number, since 2×164174690² = 53906657673192200, 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 15 ways as a sum of consecutive naturals, for example, 158414 + ... + 159446.

It is an arithmetic number, because the mean of its divisors is an integer number (9659628).

Almost surely, 2^164174690 is an apocalyptic number.

164174690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164174690 is a deficient number, since it is larger than the sum of its proper divisors (144933406).

164174690 is a wasteful number, since it uses less digits than its factorization.

164174690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 164174690 is about 12813.0671581788. The cubic root of 164174690 is about 547.5646483713.

The spelling of 164174690 in words is "one hundred sixty-four million, one hundred seventy-four thousand, six hundred ninety".