115977419 has 2 divisors, whose sum is σ = 115977420. Its totient is φ = 115977418.

The previous prime is 115977403. The next prime is 115977439. The reversal of 115977419 is 914779511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115977419 - 2⁴ = 115977403 is a prime.

It is a super-2 number, since 2×115977419² = 26901523435803122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115977419.

It is not a weakly prime, because it can be changed into another prime (115977439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57988709 + 57988710.

It is an arithmetic number, because the mean of its divisors is an integer number (57988710).

Almost surely, 2^115977419 is an apocalyptic number.

115977419 is a deficient number, since it is larger than the sum of its proper divisors (1).

115977419 is an equidigital number, since it uses as much as digits as its factorization.

115977419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 44.

The square root of 115977419 is about 10769.2812666398. The cubic root of 115977419 is about 487.6682482165.

The spelling of 115977419 in words is "one hundred fifteen million, nine hundred seventy-seven thousand, four hundred nineteen".