31144734 has 12 divisors (see below), whose sum is σ = 67480296. Its totient is φ = 10381572.

The previous prime is 31144727. The next prime is 31144741. The reversal of 31144734 is 43744113.

It is an interprime number because it is at equal distance from previous prime (31144727) and next prime (31144741).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 31144698 and 31144707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 865114 + ... + 865149.

It is an arithmetic number, because the mean of its divisors is an integer number (5623358).

Almost surely, 2^31144734 is an apocalyptic number.

31144734 is an abundant number, since it is smaller than the sum of its proper divisors (36335562).

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

31144734 is a wasteful number, since it uses less digits than its factorization.

31144734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730271 (or 1730268 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 31144734 is about 5580.7467242297. The cubic root of 31144734 is about 314.6261930152.

Adding to 31144734 its reverse (43744113), we get a palindrome (74888847).

It can be divided in two parts, 31144 and 734, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 31144734 in words is "thirty-one million, one hundred forty-four thousand, seven hundred thirty-four".