164940826 has 4 divisors (see below), whose sum is σ = 247411242. Its totient is φ = 82470412.

The previous prime is 164940793. The next prime is 164940883. The reversal of 164940826 is 628049461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 124300201 + 40640625 = 11149^2 + 6375^2 .

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 as a sum of consecutive naturals, namely, 41235205 + ... + 41235208.

Almost surely, 2^164940826 is an apocalyptic number.

164940826 is a deficient number, since it is larger than the sum of its proper divisors (82470416).

164940826 is an equidigital number, since it uses as much as digits as its factorization.

164940826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82470415.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 164940826 is about 12842.9290272897. The cubic root of 164940826 is about 548.4150801424.

The spelling of 164940826 in words is "one hundred sixty-four million, nine hundred forty thousand, eight hundred twenty-six".