31514641 has 2 divisors, whose sum is σ = 31514642. Its totient is φ = 31514640.

The previous prime is 31514629. The next prime is 31514653. The reversal of 31514641 is 14641513.

It is a balanced prime because it is at equal distance from previous prime (31514629) and next prime (31514653).

It can be written as a sum of positive squares in only one way, i.e., 26224641 + 5290000 = 5121^2 + 2300^2 .

It is an emirp because it is prime and its reverse (14641513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31514641 - 2⁷ = 31514513 is a prime.

It is not a weakly prime, because it can be changed into another prime (31514671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15757320 + 15757321.

It is an arithmetic number, because the mean of its divisors is an integer number (15757321).

Almost surely, 2^31514641 is an apocalyptic number.

It is an amenable number.

31514641 is a deficient number, since it is larger than the sum of its proper divisors (1).

31514641 is an equidigital number, since it uses as much as digits as its factorization.

31514641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 31514641 is about 5613.7902525834. The cubic root of 31514641 is about 315.8669023679.

It can be divided in two parts, 315146 and 41, that multiplied together give a triangular number (12920986 = T₅₀₈₃).

The spelling of 31514641 in words is "thirty-one million, five hundred fourteen thousand, six hundred forty-one".