118977145 has 48 divisors (see below), whose sum is σ = 178113600. Its totient is φ = 75841920.

The previous prime is 118977143. The next prime is 118977149. The reversal of 118977145 is 541779811.

It is not a de Polignac number, because 118977145 - 2¹ = 118977143 is a prime.

It is a super-2 number, since 2×118977145² = 28311122064702050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (118977143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 283746 + ... + 284164.

It is an arithmetic number, because the mean of its divisors is an integer number (3710700).

Almost surely, 2^118977145 is an apocalyptic number.

It is an amenable number.

118977145 is a deficient number, since it is larger than the sum of its proper divisors (59136455).

118977145 is a wasteful number, since it uses less digits than its factorization.

118977145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 511 counting only the distinct ones).

The product of its digits is 70560, while the sum is 43.

The square root of 118977145 is about 10907.6645071253. The cubic root of 118977145 is about 491.8369822029.

The spelling of 118977145 in words is "one hundred eighteen million, nine hundred seventy-seven thousand, one hundred forty-five".