118977129 has 12 divisors (see below), whose sum is σ = 171990000. Its totient is φ = 79256184.

The previous prime is 118977127. The next prime is 118977139. The reversal of 118977129 is 921779811.

It is a happy number.

It is not a de Polignac number, because 118977129 - 2¹ = 118977127 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118977127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9082 + ... + 17900.

It is an arithmetic number, because the mean of its divisors is an integer number (14332500).

Almost surely, 2^118977129 is an apocalyptic number.

It is an amenable number.

118977129 is a deficient number, since it is larger than the sum of its proper divisors (53012871).

118977129 is a wasteful number, since it uses less digits than its factorization.

118977129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324 (or 10321 counting only the distinct ones).

The product of its digits is 63504, while the sum is 45.

The square root of 118977129 is about 10907.6637736960. The cubic root of 118977129 is about 491.8369601556.

The spelling of 118977129 in words is "one hundred eighteen million, nine hundred seventy-seven thousand, one hundred twenty-nine".