71372136 has 64 divisors (see below), whose sum is σ = 195422400. Its totient is φ = 21542400.

The previous prime is 71372107. The next prime is 71372141. The reversal of 71372136 is 63127317.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107646 + ... + 108306.

It is an arithmetic number, because the mean of its divisors is an integer number (3053475).

Almost surely, 2^71372136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71372136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97711200).

71372136 is an abundant number, since it is smaller than the sum of its proper divisors (124050264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71372136 is a wasteful number, since it uses less digits than its factorization.

71372136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1086 counting only the distinct ones).

The product of its digits is 5292, while the sum is 30.

The square root of 71372136 is about 8448.2031225581. The cubic root of 71372136 is about 414.8039641208.

The spelling of 71372136 in words is "seventy-one million, three hundred seventy-two thousand, one hundred thirty-six".