115878437 has 2 divisors, whose sum is σ = 115878438. Its totient is φ = 115878436.

The previous prime is 115878401. The next prime is 115878481. The reversal of 115878437 is 734878511.

It is an a-pointer prime, because the next prime (115878481) can be obtained adding 115878437 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84529636 + 31348801 = 9194^2 + 5599^2 .

It is a cyclic number.

It is not a de Polignac number, because 115878437 - 2⁸ = 115878181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115868437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57939218 + 57939219.

It is an arithmetic number, because the mean of its divisors is an integer number (57939219).

Almost surely, 2^115878437 is an apocalyptic number.

It is an amenable number.

115878437 is a deficient number, since it is larger than the sum of its proper divisors (1).

115878437 is an equidigital number, since it uses as much as digits as its factorization.

115878437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 44.

The square root of 115878437 is about 10764.6847143797. The cubic root of 115878437 is about 487.5294737385.

The spelling of 115878437 in words is "one hundred fifteen million, eight hundred seventy-eight thousand, four hundred thirty-seven".