31053479 has 2 divisors, whose sum is σ = 31053480. Its totient is φ = 31053478.

The previous prime is 31053443. The next prime is 31053499. The reversal of 31053479 is 97435013.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31053479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31053409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15526739 + 15526740.

It is an arithmetic number, because the mean of its divisors is an integer number (15526740).

Almost surely, 2^31053479 is an apocalyptic number.

31053479 is a deficient number, since it is larger than the sum of its proper divisors (1).

31053479 is an equidigital number, since it uses as much as digits as its factorization.

31053479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 31053479 is about 5572.5648493311. The cubic root of 31053479 is about 314.3186043600.

The spelling of 31053479 in words is "thirty-one million, fifty-three thousand, four hundred seventy-nine".