31153134 has 16 divisors (see below), whose sum is σ = 64455120. Its totient is φ = 10026240.

The previous prime is 31153093. The next prime is 31153169. The reversal of 31153134 is 43135113.

It is a self number, because there is not a number n which added to its sum of digits gives 31153134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89347 + ... + 89694.

It is an arithmetic number, because the mean of its divisors is an integer number (4028445).

Almost surely, 2^31153134 is an apocalyptic number.

31153134 is an abundant number, since it is smaller than the sum of its proper divisors (33301986).

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

31153134 is a wasteful number, since it uses less digits than its factorization.

31153134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179075.

The product of its digits is 540, while the sum is 21.

The square root of 31153134 is about 5581.4992609513. The cubic root of 31153134 is about 314.6544762606.

Adding to 31153134 its reverse (43135113), we get a palindrome (74288247).

The spelling of 31153134 in words is "thirty-one million, one hundred fifty-three thousand, one hundred thirty-four".