115520842 has 4 divisors (see below), whose sum is σ = 173281266. Its totient is φ = 57760420.

The previous prime is 115520827. The next prime is 115520869. The reversal of 115520842 is 248025511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248025511 = 443 ⋅559877.

It can be written as a sum of positive squares in only one way, i.e., 112593321 + 2927521 = 10611^2 + 1711^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 115520842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28880209 + ... + 28880212.

Almost surely, 2^115520842 is an apocalyptic number.

115520842 is a deficient number, since it is larger than the sum of its proper divisors (57760424).

115520842 is an equidigital number, since it uses as much as digits as its factorization.

115520842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57760423.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 115520842 is about 10748.0622439582. The cubic root of 115520842 is about 487.0274598821.

The spelling of 115520842 in words is "one hundred fifteen million, five hundred twenty thousand, eight hundred forty-two".