115542377 has 2 divisors, whose sum is σ = 115542378. Its totient is φ = 115542376.

The previous prime is 115542373. The next prime is 115542431. The reversal of 115542377 is 773245511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101223721 + 14318656 = 10061^2 + 3784^2 .

It is a cyclic number.

It is not a de Polignac number, because 115542377 - 2² = 115542373 is a prime.

It is equal to p_6601859 and since 115542377 and 6601859 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (115542373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57771188 + 57771189.

It is an arithmetic number, because the mean of its divisors is an integer number (57771189).

Almost surely, 2^115542377 is an apocalyptic number.

It is an amenable number.

115542377 is a deficient number, since it is larger than the sum of its proper divisors (1).

115542377 is an equidigital number, since it uses as much as digits as its factorization.

115542377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 35.

The square root of 115542377 is about 10749.0640057635. The cubic root of 115542377 is about 487.0577213325.

Adding to 115542377 its reverse (773245511), we get a palindrome (888787888).

It can be divided in two parts, 11554 and 2377, that added together give a palindrome (13931).

The spelling of 115542377 in words is "one hundred fifteen million, five hundred forty-two thousand, three hundred seventy-seven".