3125031997 has 2 divisors, whose sum is σ = 3125031998. Its totient is φ = 3125031996.

The previous prime is 3125031983. The next prime is 3125032003. The reversal of 3125031997 is 7991305213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2070796036 + 1054235961 = 45506^2 + 32469^2 .

It is a cyclic number.

It is not a de Polignac number, because 3125031997 - 2⁷ = 3125031869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3125031947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562515998 + 1562515999.

It is an arithmetic number, because the mean of its divisors is an integer number (1562515999).

Almost surely, 2^3125031997 is an apocalyptic number.

It is an amenable number.

3125031997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125031997 is an equidigital number, since it uses as much as digits as its factorization.

3125031997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 3125031997 is about 55901.9856266305. The cubic root of 3125031997 is about 1462.0138589452.

The spelling of 3125031997 in words is "three billion, one hundred twenty-five million, thirty-one thousand, nine hundred ninety-seven".