31052393 has 2 divisors, whose sum is σ = 31052394. Its totient is φ = 31052392.

The previous prime is 31052381. The next prime is 31052419. The reversal of 31052393 is 39325013.

It is an a-pointer prime, because the next prime (31052419) can be obtained adding 31052393 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22543504 + 8508889 = 4748^2 + 2917^2 .

It is a cyclic number.

It is not a de Polignac number, because 31052393 - 2⁴ = 31052377 is a prime.

It is a super-2 number, since 2×31052393² = 1928502222052898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31052303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15526196 + 15526197.

It is an arithmetic number, because the mean of its divisors is an integer number (15526197).

Almost surely, 2^31052393 is an apocalyptic number.

It is an amenable number.

31052393 is a deficient number, since it is larger than the sum of its proper divisors (1).

31052393 is an equidigital number, since it uses as much as digits as its factorization.

31052393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 31052393 is about 5572.4674068136. The cubic root of 31052393 is about 314.3149402082.

The spelling of 31052393 in words is "thirty-one million, fifty-two thousand, three hundred ninety-three".