31483136 has 36 divisors (see below), whose sum is σ = 65587872. Its totient is φ = 15054336.

The previous prime is 31483117. The next prime is 31483163. The reversal of 31483136 is 63138413.

It is a junction number, because it is equal to n+sod(n) for n = 31483099 and 31483108.

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, 3215 + ... + 8561.

Almost surely, 2^31483136 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 31483136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32793936).

31483136 is an abundant number, since it is smaller than the sum of its proper divisors (34104736).

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

31483136 is an equidigital number, since it uses as much as digits as its factorization.

31483136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5386 (or 5372 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 31483136 is about 5610.9835145008. The cubic root of 31483136 is about 315.7616105163.

The spelling of 31483136 in words is "thirty-one million, four hundred eighty-three thousand, one hundred thirty-six".