115437389 has 2 divisors, whose sum is σ = 115437390. Its totient is φ = 115437388.

The previous prime is 115437359. The next prime is 115437457. The reversal of 115437389 is 983734511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115197289 + 240100 = 10733^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 115437389 - 2¹⁶ = 115371853 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_6596159 and since 115437389 and 6596159 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115437359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57718694 + 57718695.

It is an arithmetic number, because the mean of its divisors is an integer number (57718695).

Almost surely, 2^115437389 is an apocalyptic number.

It is an amenable number.

115437389 is a deficient number, since it is larger than the sum of its proper divisors (1).

115437389 is an equidigital number, since it uses as much as digits as its factorization.

115437389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 115437389 is about 10744.1793078857. The cubic root of 115437389 is about 486.9101543726.

The spelling of 115437389 in words is "one hundred fifteen million, four hundred thirty-seven thousand, three hundred eighty-nine".