164907553 has 4 divisors (see below), whose sum is σ = 165999808. Its totient is φ = 163815300.

The previous prime is 164907541. The next prime is 164907559. The reversal of 164907553 is 355709461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355709461 = 1667 ⋅213383.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164907553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164907559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545901 + ... + 546202.

It is an arithmetic number, because the mean of its divisors is an integer number (41499952).

Almost surely, 2^164907553 is an apocalyptic number.

It is an amenable number.

164907553 is a deficient number, since it is larger than the sum of its proper divisors (1092255).

164907553 is a wasteful number, since it uses less digits than its factorization.

164907553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092254.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 164907553 is about 12841.6335798838. The cubic root of 164907553 is about 548.3782009727.

The spelling of 164907553 in words is "one hundred sixty-four million, nine hundred seven thousand, five hundred fifty-three".