164140253 has 4 divisors (see below), whose sum is σ = 173795580. Its totient is φ = 154484928.

The previous prime is 164140217. The next prime is 164140267. The reversal of 164140253 is 352041461.

164140253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352041461 = 16111 ⋅21851.

It can be written as a sum of positive squares in 2 ways, for example, as 58400164 + 105740089 = 7642^2 + 10283^2 .

It is a cyclic number.

It is not a de Polignac number, because 164140253 - 2⁶ = 164140189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164140153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4827638 + ... + 4827671.

It is an arithmetic number, because the mean of its divisors is an integer number (43448895).

Almost surely, 2^164140253 is an apocalyptic number.

It is an amenable number.

164140253 is a deficient number, since it is larger than the sum of its proper divisors (9655327).

164140253 is an equidigital number, since it uses as much as digits as its factorization.

164140253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655326.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 164140253 is about 12811.7232642607. The cubic root of 164140253 is about 547.5263602885.

The spelling of 164140253 in words is "one hundred sixty-four million, one hundred forty thousand, two hundred fifty-three".