31514113 has 2 divisors, whose sum is σ = 31514114. Its totient is φ = 31514112.

The previous prime is 31514101. The next prime is 31514143. The reversal of 31514113 is 31141513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31225744 + 288369 = 5588^2 + 537^2 .

It is a cyclic number.

It is not a de Polignac number, because 31514113 - 2⁵ = 31514081 is a prime.

It is not a weakly prime, because it can be changed into another prime (31514143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15757056 + 15757057.

It is an arithmetic number, because the mean of its divisors is an integer number (15757057).

Almost surely, 2^31514113 is an apocalyptic number.

It is an amenable number.

31514113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31514113 is an equidigital number, since it uses as much as digits as its factorization.

31514113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 19.

The square root of 31514113 is about 5613.7432253355. The cubic root of 31514113 is about 315.8651383343.

Adding to 31514113 its reverse (31141513), we get a palindrome (62655626).

The spelling of 31514113 in words is "thirty-one million, five hundred fourteen thousand, one hundred thirteen".