31534061 has 4 divisors (see below), whose sum is σ = 33959772. Its totient is φ = 29108352.

The previous prime is 31534057. The next prime is 31534067. The reversal of 31534061 is 16043513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16043513 = 307 ⋅52259.

It can be written as a sum of positive squares in 2 ways, for example, as 14969161 + 16564900 = 3869^2 + 4070^2 .

It is not a de Polignac number, because 31534061 - 2² = 31534057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31534067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1212836 + ... + 1212861.

It is an arithmetic number, because the mean of its divisors is an integer number (8489943).

Almost surely, 2^31534061 is an apocalyptic number.

It is an amenable number.

31534061 is a deficient number, since it is larger than the sum of its proper divisors (2425711).

31534061 is a wasteful number, since it uses less digits than its factorization.

31534061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425710.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 31534061 is about 5615.5196553836. The cubic root of 31534061 is about 315.9317703730.

Adding to 31534061 its reverse (16043513), we get a palindrome (47577574).

The spelling of 31534061 in words is "thirty-one million, five hundred thirty-four thousand, sixty-one".