31054693 has 2 divisors, whose sum is σ = 31054694. Its totient is φ = 31054692.

The previous prime is 31054651. The next prime is 31054739. The reversal of 31054693 is 39645013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23203489 + 7851204 = 4817^2 + 2802^2 .

It is an emirp because it is prime and its reverse (39645013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31054693 - 2⁹ = 31054181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31054613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15527346 + 15527347.

It is an arithmetic number, because the mean of its divisors is an integer number (15527347).

Almost surely, 2^31054693 is an apocalyptic number.

It is an amenable number.

31054693 is a deficient number, since it is larger than the sum of its proper divisors (1).

31054693 is an equidigital number, since it uses as much as digits as its factorization.

31054693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 31054693 is about 5572.6737747692. The cubic root of 31054693 is about 314.3227002812.

The spelling of 31054693 in words is "thirty-one million, fifty-four thousand, six hundred ninety-three".