115400377 has 2 divisors, whose sum is σ = 115400378. Its totient is φ = 115400376.

The previous prime is 115400359. The next prime is 115400381. The reversal of 115400377 is 773004511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115154361 + 246016 = 10731^2 + 496^2 .

It is an emirp because it is prime and its reverse (773004511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115400377 is a prime.

It is not a weakly prime, because it can be changed into another prime (115400317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57700188 + 57700189.

It is an arithmetic number, because the mean of its divisors is an integer number (57700189).

Almost surely, 2^115400377 is an apocalyptic number.

It is an amenable number.

115400377 is a deficient number, since it is larger than the sum of its proper divisors (1).

115400377 is an equidigital number, since it uses as much as digits as its factorization.

115400377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 115400377 is about 10742.4567488075. The cubic root of 115400377 is about 486.8581104459.

Adding to 115400377 its reverse (773004511), we get a palindrome (888404888).

The spelling of 115400377 in words is "one hundred fifteen million, four hundred thousand, three hundred seventy-seven".