31495423 has 2 divisors, whose sum is σ = 31495424. Its totient is φ = 31495422.

The previous prime is 31495417. The next prime is 31495447. The reversal of 31495423 is 32459413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31495423 - 2¹³ = 31487231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31495403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15747711 + 15747712.

It is an arithmetic number, because the mean of its divisors is an integer number (15747712).

Almost surely, 2^31495423 is an apocalyptic number.

31495423 is a deficient number, since it is larger than the sum of its proper divisors (1).

31495423 is an equidigital number, since it uses as much as digits as its factorization.

31495423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 31495423 is about 5612.0783137800. The cubic root of 31495423 is about 315.8026828573.

The spelling of 31495423 in words is "thirty-one million, four hundred ninety-five thousand, four hundred twenty-three".