72825134 has 4 divisors (see below), whose sum is σ = 109237704. Its totient is φ = 36412566.

The previous prime is 72825131. The next prime is 72825149. The reversal of 72825134 is 43152827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43152827 = 461 ⋅93607.

It is a self number, because there is not a number n which added to its sum of digits gives 72825134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72825131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18206282 + ... + 18206285.

It is an arithmetic number, because the mean of its divisors is an integer number (27309426).

Almost surely, 2^72825134 is an apocalyptic number.

72825134 is a deficient number, since it is larger than the sum of its proper divisors (36412570).

72825134 is a wasteful number, since it uses less digits than its factorization.

72825134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36412569.

The product of its digits is 13440, while the sum is 32.

The square root of 72825134 is about 8533.7643510938. The cubic root of 72825134 is about 417.5999430853.

The spelling of 72825134 in words is "seventy-two million, eight hundred twenty-five thousand, one hundred thirty-four".