115351997 has 2 divisors, whose sum is σ = 115351998. Its totient is φ = 115351996.

The previous prime is 115351993. The next prime is 115352033. The reversal of 115351997 is 799153511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78251716 + 37100281 = 8846^2 + 6091^2 .

It is a cyclic number.

It is not a de Polignac number, because 115351997 - 2² = 115351993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115351993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57675998 + 57675999.

It is an arithmetic number, because the mean of its divisors is an integer number (57675999).

Almost surely, 2^115351997 is an apocalyptic number.

It is an amenable number.

115351997 is a deficient number, since it is larger than the sum of its proper divisors (1).

115351997 is an equidigital number, since it uses as much as digits as its factorization.

115351997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42525, while the sum is 41.

The square root of 115351997 is about 10740.2047000977. The cubic root of 115351997 is about 486.7900647764.

The spelling of 115351997 in words is "one hundred fifteen million, three hundred fifty-one thousand, nine hundred ninety-seven".