115961506 has 4 divisors (see below), whose sum is σ = 173942262. Its totient is φ = 57980752.

The previous prime is 115961473. The next prime is 115961513. The reversal of 115961506 is 605169511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68475625 + 47485881 = 8275^2 + 6891^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28990375 + ... + 28990378.

Almost surely, 2^115961506 is an apocalyptic number.

115961506 is a deficient number, since it is larger than the sum of its proper divisors (57980756).

115961506 is an equidigital number, since it uses as much as digits as its factorization.

115961506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57980755.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 115961506 is about 10768.5424269025. The cubic root of 115961506 is about 487.6459432429.

The spelling of 115961506 in words is "one hundred fifteen million, nine hundred sixty-one thousand, five hundred six".