164706457 has 16 divisors (see below), whose sum is σ = 175484880. Its totient is φ = 154336000.

The previous prime is 164706449. The next prime is 164706461. The reversal of 164706457 is 754607461.

It can be written as a sum of positive squares in 8 ways, for example, as 37896336 + 126810121 = 6156^2 + 11261^2 .

It is not a de Polignac number, because 164706457 - 2³ = 164706449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164706407) by changing a digit.

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, 154707 + ... + 155767.

It is an arithmetic number, because the mean of its divisors is an integer number (10967805).

Almost surely, 2^164706457 is an apocalyptic number.

It is an amenable number.

164706457 is a deficient number, since it is larger than the sum of its proper divisors (10778423).

164706457 is a wasteful number, since it uses less digits than its factorization.

164706457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 164706457 is about 12833.8013464445. The cubic root of 164706457 is about 548.1552042763.

The spelling of 164706457 in words is "one hundred sixty-four million, seven hundred six thousand, four hundred fifty-seven".