71540372 has 12 divisors (see below), whose sum is σ = 125284320. Its totient is φ = 35744856.

The previous prime is 71540363. The next prime is 71540383. The reversal of 71540372 is 27304517.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953 + ... + 11999.

It is an arithmetic number, because the mean of its divisors is an integer number (10440360).

Almost surely, 2^71540372 is an apocalyptic number.

It is an amenable number.

71540372 is a deficient number, since it is larger than the sum of its proper divisors (53743948).

71540372 is a wasteful number, since it uses less digits than its factorization.

71540372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12670 (or 12668 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 71540372 is about 8458.1541721584. The cubic root of 71540372 is about 415.1296290264.

Adding to 71540372 its reverse (27304517), we get a palindrome (98844889).

The spelling of 71540372 in words is "seventy-one million, five hundred forty thousand, three hundred seventy-two".