31023268 has 6 divisors (see below), whose sum is σ = 54290726. Its totient is φ = 15511632.

The previous prime is 31023263. The next prime is 31023269. The reversal of 31023268 is 86232013.

It can be written as a sum of positive squares in only one way, i.e., 22071204 + 8952064 = 4698^2 + 2992^2 .

It is not an unprimeable number, because it can be changed into a prime (31023263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3877905 + ... + 3877912.

Almost surely, 2^31023268 is an apocalyptic number.

It is an amenable number.

31023268 is a deficient number, since it is larger than the sum of its proper divisors (23267458).

31023268 is a wasteful number, since it uses less digits than its factorization.

31023268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7755821 (or 7755819 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 31023268 is about 5569.8534989710. The cubic root of 31023268 is about 314.2166409005.

The spelling of 31023268 in words is "thirty-one million, twenty-three thousand, two hundred sixty-eight".