115274989 has 2 divisors, whose sum is σ = 115274990. Its totient is φ = 115274988.

The previous prime is 115274969. The next prime is 115274993. The reversal of 115274989 is 989472511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111133764 + 4141225 = 10542^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 115274989 - 2¹³ = 115266797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115274969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57637494 + 57637495.

It is an arithmetic number, because the mean of its divisors is an integer number (57637495).

Almost surely, 2^115274989 is an apocalyptic number.

It is an amenable number.

115274989 is a deficient number, since it is larger than the sum of its proper divisors (1).

115274989 is an equidigital number, since it uses as much as digits as its factorization.

115274989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 46.

The square root of 115274989 is about 10736.6190674718. The cubic root of 115274989 is about 486.6817150431.

The spelling of 115274989 in words is "one hundred fifteen million, two hundred seventy-four thousand, nine hundred eighty-nine".