31030132 has 36 divisors (see below), whose sum is σ = 65218944. Its totient is φ = 12867120.

The previous prime is 31030127. The next prime is 31030157. The reversal of 31030132 is 23103013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3523 + ... + 8629.

Almost surely, 2^31030132 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 31030132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32609472).

31030132 is an abundant number, since it is smaller than the sum of its proper divisors (34188812).

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

31030132 is a wasteful number, since it uses less digits than its factorization.

31030132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156 (or 5147 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 31030132 is about 5570.4696390879. The cubic root of 31030132 is about 314.2398130131.

Adding to 31030132 its reverse (23103013), we get a palindrome (54133145).

It can be divided in two parts, 3103013 and 2, that multiplied together give a palindrome (6206026).

The spelling of 31030132 in words is "thirty-one million, thirty thousand, one hundred thirty-two".