31134774 has 32 divisors (see below), whose sum is σ = 69382656. Its totient is φ = 9233120.

The previous prime is 31134773. The next prime is 31134799. The reversal of 31134774 is 47743113.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917 + ... + 8120.

It is an arithmetic number, because the mean of its divisors is an integer number (2168208).

Almost surely, 2^31134774 is an apocalyptic number.

31134774 is an abundant number, since it is smaller than the sum of its proper divisors (38247882).

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

31134774 is a wasteful number, since it uses less digits than its factorization.

31134774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100.

The product of its digits is 7056, while the sum is 30.

The square root of 31134774 is about 5579.8542991731. The cubic root of 31134774 is about 314.5926505766.

Adding to 31134774 its reverse (47743113), we get a palindrome (78877887).

It can be divided in two parts, 3113 and 4774, that added together give a palindrome (7887).

The spelling of 31134774 in words is "thirty-one million, one hundred thirty-four thousand, seven hundred seventy-four".