31418953 has 2 divisors, whose sum is σ = 31418954. Its totient is φ = 31418952.

The previous prime is 31418921. The next prime is 31418963. The reversal of 31418953 is 35981413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18688329 + 12730624 = 4323^2 + 3568^2 .

It is a cyclic number.

It is not a de Polignac number, because 31418953 - 2⁵ = 31418921 is a prime.

It is not a weakly prime, because it can be changed into another prime (31418963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15709476 + 15709477.

It is an arithmetic number, because the mean of its divisors is an integer number (15709477).

Almost surely, 2^31418953 is an apocalyptic number.

It is an amenable number.

31418953 is a deficient number, since it is larger than the sum of its proper divisors (1).

31418953 is an equidigital number, since it uses as much as digits as its factorization.

31418953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 31418953 is about 5605.2611892757. The cubic root of 31418953 is about 315.5468890522.

The spelling of 31418953 in words is "thirty-one million, four hundred eighteen thousand, nine hundred fifty-three".