31061252 has 6 divisors (see below), whose sum is σ = 54357198. Its totient is φ = 15530624.

The previous prime is 31061249. The next prime is 31061263. The reversal of 31061252 is 25216013.

It can be written as a sum of positive squares in only one way, i.e., 19061956 + 11999296 = 4366^2 + 3464^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3882653 + ... + 3882660.

It is an arithmetic number, because the mean of its divisors is an integer number (9059533).

Almost surely, 2^31061252 is an apocalyptic number.

It is an amenable number.

31061252 is a deficient number, since it is larger than the sum of its proper divisors (23295946).

31061252 is a wasteful number, since it uses less digits than its factorization.

31061252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765317 (or 7765315 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 31061252 is about 5573.2622403759. The cubic root of 31061252 is about 314.3448278811.

Adding to 31061252 its reverse (25216013), we get a palindrome (56277265).

It can be divided in two parts, 31061 and 252, that added together give a palindrome (31313).

The spelling of 31061252 in words is "thirty-one million, sixty-one thousand, two hundred fifty-two".