116609129 has 16 divisors (see below), whose sum is σ = 144291840. Its totient is φ = 91765440.

The previous prime is 116609111. The next prime is 116609147. The reversal of 116609129 is 921906611.

It is an interprime number because it is at equal distance from previous prime (116609111) and next prime (116609147).

It is a de Polignac number, because none of the positive numbers 2^k-116609129 is a prime.

It is a super-2 number, since 2×116609129² = 27195377932277282, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (116609159) 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, 14027 + ... + 20735.

It is an arithmetic number, because the mean of its divisors is an integer number (9018240).

Almost surely, 2^116609129 is an apocalyptic number.

It is an amenable number.

116609129 is a deficient number, since it is larger than the sum of its proper divisors (27682711).

116609129 is a wasteful number, since it uses less digits than its factorization.

116609129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 116609129 is about 10798.5706924574. The cubic root of 116609129 is about 488.5520618409.

The spelling of 116609129 in words is "one hundred sixteen million, six hundred nine thousand, one hundred twenty-nine".