31045454 has 12 divisors (see below), whose sum is σ = 51186912. Its totient is φ = 14111460.

The previous prime is 31045447. The next prime is 31045493. The reversal of 31045454 is 45454013.

It is a super-2 number, since 2×31045454² = 1927640428132232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63902 + ... + 64385.

It is an arithmetic number, because the mean of its divisors is an integer number (4265576).

Almost surely, 2^31045454 is an apocalyptic number.

31045454 is a deficient number, since it is larger than the sum of its proper divisors (20141458).

31045454 is a wasteful number, since it uses less digits than its factorization.

31045454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128311 (or 128300 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 31045454 is about 5571.8447573492. The cubic root of 31045454 is about 314.2915260830.

Adding to 31045454 its reverse (45454013), we get a palindrome (76499467).

It can be divided in two parts, 3104 and 5454, that added together give a palindrome (8558).

The spelling of 31045454 in words is "thirty-one million, forty-five thousand, four hundred fifty-four".