116121949 has 4 divisors (see below), whose sum is σ = 117426780. Its totient is φ = 114817120.

The previous prime is 116121931. The next prime is 116121953. The reversal of 116121949 is 949121611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10176100 + 105945849 = 3190^2 + 10293^2 .

It is not a de Polignac number, because 116121949 - 2⁹ = 116121437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116121959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652282 + ... + 652459.

It is an arithmetic number, because the mean of its divisors is an integer number (29356695).

Almost surely, 2^116121949 is an apocalyptic number.

It is an amenable number.

116121949 is a deficient number, since it is larger than the sum of its proper divisors (1304831).

116121949 is an equidigital number, since it uses as much as digits as its factorization.

116121949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304830.

The product of its digits is 3888, while the sum is 34.

The square root of 116121949 is about 10775.9894673297. The cubic root of 116121949 is about 487.8707400305.

The spelling of 116121949 in words is "one hundred sixteen million, one hundred twenty-one thousand, nine hundred forty-nine".