116149815 has 16 divisors (see below), whose sum is σ = 206488800. Its totient is φ = 61946496.

The previous prime is 116149811. The next prime is 116149849. The reversal of 116149815 is 518941611.

It is a happy number.

116149815 is a `hidden beast` number, since 1 + 161 + 498 + 1 + 5 = 666.

It is not a de Polignac number, because 116149815 - 2² = 116149811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116149815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116149811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430050 + ... + 430319.

It is an arithmetic number, because the mean of its divisors is an integer number (12905550).

Almost surely, 2^116149815 is an apocalyptic number.

116149815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

116149815 is a deficient number, since it is larger than the sum of its proper divisors (90338985).

116149815 is an equidigital number, since it uses as much as digits as its factorization.

116149815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860383 (or 860377 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 116149815 is about 10777.2823568839. The cubic root of 116149815 is about 487.9097619921.

It can be divided in two parts, 116149 and 815, that added together give a square (116964 = 342²).

The spelling of 116149815 in words is "one hundred sixteen million, one hundred forty-nine thousand, eight hundred fifteen".