72134253 has 16 divisors (see below), whose sum is σ = 107490240. Its totient is φ = 47808432.

The previous prime is 72134243. The next prime is 72134261. The reversal of 72134253 is 35243127.

It is not a de Polignac number, because 72134253 - 2¹⁸ = 71872109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72134243) 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, 3051 + ... + 12392.

It is an arithmetic number, because the mean of its divisors is an integer number (6718140).

Almost surely, 2^72134253 is an apocalyptic number.

It is an amenable number.

72134253 is a deficient number, since it is larger than the sum of its proper divisors (35355987).

72134253 is a wasteful number, since it uses less digits than its factorization.

72134253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15625 (or 15619 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 72134253 is about 8493.1886238326. The cubic root of 72134253 is about 416.2751758168.

The spelling of 72134253 in words is "seventy-two million, one hundred thirty-four thousand, two hundred fifty-three".