115641646 has 4 divisors (see below), whose sum is σ = 173462472. Its totient is φ = 57820822.

The previous prime is 115641637. The next prime is 115641649. The reversal of 115641646 is 646146511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646146511 = 41 ⋅15759671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115641649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28910410 + ... + 28910413.

It is an arithmetic number, because the mean of its divisors is an integer number (43365618).

Almost surely, 2^115641646 is an apocalyptic number.

115641646 is a deficient number, since it is larger than the sum of its proper divisors (57820826).

115641646 is an equidigital number, since it uses as much as digits as its factorization.

115641646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57820825.

The product of its digits is 17280, while the sum is 34.

The square root of 115641646 is about 10753.6805792250. The cubic root of 115641646 is about 487.1971676959.

The spelling of 115641646 in words is "one hundred fifteen million, six hundred forty-one thousand, six hundred forty-six".