118149629 has 4 divisors (see below), whose sum is σ = 127238076. Its totient is φ = 109061184.

The previous prime is 118149617. The next prime is 118149701. The reversal of 118149629 is 926941811.

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 43586404 + 74563225 = 6602^2 + 8635^2 .

It is a cyclic number.

It is not a de Polignac number, because 118149629 - 2²⁰ = 117101053 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 (118149529) 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, 4544204 + ... + 4544229.

It is an arithmetic number, because the mean of its divisors is an integer number (31809519).

Almost surely, 2^118149629 is an apocalyptic number.

It is an amenable number.

118149629 is a deficient number, since it is larger than the sum of its proper divisors (9088447).

118149629 is an equidigital number, since it uses as much as digits as its factorization.

118149629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088446.

The product of its digits is 31104, while the sum is 41.

The square root of 118149629 is about 10869.6655422327. The cubic root of 118149629 is about 490.6940449383.

The spelling of 118149629 in words is "one hundred eighteen million, one hundred forty-nine thousand, six hundred twenty-nine".