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115644961 = 191605471
BaseRepresentation
bin1101110010010…
…01101000100001
322001121101001201
412321021220201
5214101114321
615250401201
72602652215
oct671115041
9261541051
10115644961
115a307853
1232890201
131ac60893
1411504945
15a245291
hex6e49a21

115644961 has 4 divisors (see below), whose sum is σ = 116250624. Its totient is φ = 115039300.

The previous prime is 115644941. The next prime is 115645043. The reversal of 115644961 is 169446511.

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 not a de Polignac number, because 115644961 - 25 = 115644929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115644961.

It is not an unprimeable number, because it can be changed into a prime (115644941) 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, 302545 + ... + 302926.

It is an arithmetic number, because the mean of its divisors is an integer number (29062656).

Almost surely, 2115644961 is an apocalyptic number.

It is an amenable number.

115644961 is a deficient number, since it is larger than the sum of its proper divisors (605663).

115644961 is an equidigital number, since it uses as much as digits as its factorization.

115644961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605662.

The product of its digits is 25920, while the sum is 37.

The square root of 115644961 is about 10753.8347113948. The cubic root of 115644961 is about 487.2018230060.

The spelling of 115644961 in words is "one hundred fifteen million, six hundred forty-four thousand, nine hundred sixty-one".

Divisors: 1 191 605471 115644961