71132631 has 16 divisors (see below), whose sum is σ = 98472960. Its totient is φ = 45624960.

The previous prime is 71132609. The next prime is 71132657. The reversal of 71132631 is 13623117.

It is not a de Polignac number, because 71132631 - 2⁹ = 71132119 is a prime.

It is a super-2 number, since 2×71132631² = 10119702385964322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71132431) 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, 14511 + ... + 18783.

It is an arithmetic number, because the mean of its divisors is an integer number (6154560).

Almost surely, 2^71132631 is an apocalyptic number.

71132631 is a deficient number, since it is larger than the sum of its proper divisors (27340329).

71132631 is a wasteful number, since it uses less digits than its factorization.

71132631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486.

The product of its digits is 756, while the sum is 24.

The square root of 71132631 is about 8434.0163030433. The cubic root of 71132631 is about 414.3394553069.

Adding to 71132631 its reverse (13623117), we get a palindrome (84755748).

The spelling of 71132631 in words is "seventy-one million, one hundred thirty-two thousand, six hundred thirty-one".