31134456 has 80 divisors (see below), whose sum is σ = 91040400. Its totient is φ = 9922176.

The previous prime is 31134443. The next prime is 31134469. The reversal of 31134456 is 65443113.

31134456 is a `hidden beast` number, since 311 + 344 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (31134443) and next prime (31134469).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13860 + ... + 15948.

It is an arithmetic number, because the mean of its divisors is an integer number (1138005).

Almost surely, 2^31134456 is an apocalyptic number.

31134456 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31134456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45520200).

31134456 is an abundant number, since it is smaller than the sum of its proper divisors (59905944).

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

31134456 is a wasteful number, since it uses less digits than its factorization.

31134456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130 (or 2117 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 31134456 is about 5579.8258037326. The cubic root of 31134456 is about 314.5915795255.

Adding to 31134456 its reverse (65443113), we get a palindrome (96577569).

It can be divided in two parts, 3113 and 4456, that added together give a square (7569 = 87²).

The spelling of 31134456 in words is "thirty-one million, one hundred thirty-four thousand, four hundred fifty-six".