116642641 has 4 divisors (see below), whose sum is σ = 116747632. Its totient is φ = 116537652.

The previous prime is 116642633. The next prime is 116642657. The reversal of 116642641 is 146246611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 116642641 - 2³ = 116642633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116642741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50811 + ... + 53056.

It is an arithmetic number, because the mean of its divisors is an integer number (29186908).

Almost surely, 2^116642641 is an apocalyptic number.

It is an amenable number.

116642641 is a deficient number, since it is larger than the sum of its proper divisors (104991).

116642641 is a wasteful number, since it uses less digits than its factorization.

116642641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104990.

The product of its digits is 6912, while the sum is 31.

The square root of 116642641 is about 10800.1222678264. The cubic root of 116642641 is about 488.5988586017.

The spelling of 116642641 in words is "one hundred sixteen million, six hundred forty-two thousand, six hundred forty-one".