31400053 has 2 divisors, whose sum is σ = 31400054. Its totient is φ = 31400052.

The previous prime is 31400029. The next prime is 31400063. The reversal of 31400053 is 35000413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17247409 + 14152644 = 4153^2 + 3762^2 .

It is a cyclic number.

It is not a de Polignac number, because 31400053 - 2⁵ = 31400021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31400023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700026 + 15700027.

It is an arithmetic number, because the mean of its divisors is an integer number (15700027).

Almost surely, 2^31400053 is an apocalyptic number.

It is an amenable number.

31400053 is a deficient number, since it is larger than the sum of its proper divisors (1).

31400053 is an equidigital number, since it uses as much as digits as its factorization.

31400053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 31400053 is about 5603.5750195746. The cubic root of 31400053 is about 315.4836041888.

Adding to 31400053 its reverse (35000413), we get a palindrome (66400466).

The spelling of 31400053 in words is "thirty-one million, four hundred thousand, fifty-three".