118143946 has 16 divisors (see below), whose sum is σ = 180488448. Its totient is φ = 57985200.

The previous prime is 118143937. The next prime is 118143953. The reversal of 118143946 is 649341811.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110611 + ... + 111673.

It is an arithmetic number, because the mean of its divisors is an integer number (11280528).

Almost surely, 2^118143946 is an apocalyptic number.

118143946 is a deficient number, since it is larger than the sum of its proper divisors (62344502).

118143946 is a wasteful number, since it uses less digits than its factorization.

118143946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037.

The product of its digits is 20736, while the sum is 37.

The square root of 118143946 is about 10869.4041235019. The cubic root of 118143946 is about 490.6861773470.

The spelling of 118143946 in words is "one hundred eighteen million, one hundred forty-three thousand, nine hundred forty-six".