31943053 has 2 divisors, whose sum is σ = 31943054. Its totient is φ = 31943052.

The previous prime is 31943029. The next prime is 31943069. The reversal of 31943053 is 35034913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31832164 + 110889 = 5642^2 + 333^2 .

It is an emirp because it is prime and its reverse (35034913) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31943053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31943083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15971526 + 15971527.

It is an arithmetic number, because the mean of its divisors is an integer number (15971527).

Almost surely, 2^31943053 is an apocalyptic number.

It is an amenable number.

31943053 is a deficient number, since it is larger than the sum of its proper divisors (1).

31943053 is an equidigital number, since it uses as much as digits as its factorization.

31943053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 31943053 is about 5651.8185568895. The cubic root of 31943053 is about 317.2917699675.

Adding to 31943053 its reverse (35034913), we get a palindrome (66977966).

The spelling of 31943053 in words is "thirty-one million, nine hundred forty-three thousand, fifty-three".