72810134 has 16 divisors (see below), whose sum is σ = 117642240. Its totient is φ = 33698280.

The previous prime is 72810131. The next prime is 72810139. The reversal of 72810134 is 43101827.

It is a super-2 number, since 2×72810134² = 10602631226195912, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72810131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24104 + ... + 26955.

It is an arithmetic number, because the mean of its divisors is an integer number (7352640).

Almost surely, 2^72810134 is an apocalyptic number.

72810134 is a deficient number, since it is larger than the sum of its proper divisors (44832106).

72810134 is a wasteful number, since it uses less digits than its factorization.

72810134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51115.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 72810134 is about 8532.8854439750. The cubic root of 72810134 is about 417.5712697006.

The spelling of 72810134 in words is "seventy-two million, eight hundred ten thousand, one hundred thirty-four".