31534113 has 16 divisors (see below), whose sum is σ = 45381056. Its totient is φ = 19362240.

The previous prime is 31534103. The next prime is 31534117. The reversal of 31534113 is 31143513.

It is not a de Polignac number, because 31534113 - 2¹² = 31530017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31534113.

It is not an unprimeable number, because it can be changed into a prime (31534117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31131 + ... + 32127.

It is an arithmetic number, because the mean of its divisors is an integer number (2836316).

Almost surely, 2^31534113 is an apocalyptic number.

It is an amenable number.

31534113 is a deficient number, since it is larger than the sum of its proper divisors (13846943).

31534113 is a wasteful number, since it uses less digits than its factorization.

31534113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

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

The square root of 31534113 is about 5615.5242854074. The cubic root of 31534113 is about 315.9319440312.

Adding to 31534113 its reverse (31143513), we get a palindrome (62677626).

The spelling of 31534113 in words is "thirty-one million, five hundred thirty-four thousand, one hundred thirteen".