164557293 has 16 divisors (see below), whose sum is σ = 227435520. Its totient is φ = 105762096.

The previous prime is 164557273. The next prime is 164557301. The reversal of 164557293 is 392755461.

It is not a de Polignac number, because 164557293 - 2⁸ = 164557037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164557213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738 + ... + 18156.

It is an arithmetic number, because the mean of its divisors is an integer number (14214720).

Almost surely, 2^164557293 is an apocalyptic number.

It is an amenable number.

164557293 is a deficient number, since it is larger than the sum of its proper divisors (62878227).

164557293 is a wasteful number, since it uses less digits than its factorization.

164557293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17536.

The product of its digits is 226800, while the sum is 42.

The square root of 164557293 is about 12827.9886576189. The cubic root of 164557293 is about 547.9896780427.

The spelling of 164557293 in words is "one hundred sixty-four million, five hundred fifty-seven thousand, two hundred ninety-three".