31453039 has 2 divisors, whose sum is σ = 31453040. Its totient is φ = 31453038.

The previous prime is 31453021. The next prime is 31453133. The reversal of 31453039 is 93035413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31453039 - 2⁹ = 31452527 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 31452998 and 31453016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31457039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15726519 + 15726520.

It is an arithmetic number, because the mean of its divisors is an integer number (15726520).

Almost surely, 2^31453039 is an apocalyptic number.

31453039 is a deficient number, since it is larger than the sum of its proper divisors (1).

31453039 is an equidigital number, since it uses as much as digits as its factorization.

31453039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 31453039 is about 5608.3009013426. The cubic root of 31453039 is about 315.6609586715.

The spelling of 31453039 in words is "thirty-one million, four hundred fifty-three thousand, thirty-nine".