115191437 has 2 divisors, whose sum is σ = 115191438. Its totient is φ = 115191436.

The previous prime is 115191431. The next prime is 115191457. The reversal of 115191437 is 734191511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92428996 + 22762441 = 9614^2 + 4771^2 .

It is a cyclic number.

It is not a de Polignac number, because 115191437 - 2⁴ = 115191421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115191431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57595718 + 57595719.

It is an arithmetic number, because the mean of its divisors is an integer number (57595719).

Almost surely, 2^115191437 is an apocalyptic number.

It is an amenable number.

115191437 is a deficient number, since it is larger than the sum of its proper divisors (1).

115191437 is an equidigital number, since it uses as much as digits as its factorization.

115191437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 32.

The square root of 115191437 is about 10732.7273793757. The cubic root of 115191437 is about 486.5641033528.

The spelling of 115191437 in words is "one hundred fifteen million, one hundred ninety-one thousand, four hundred thirty-seven".