149693918 has 16 divisors (see below), whose sum is σ = 247382640. Its totient is φ = 67368000.

The previous prime is 149693909. The next prime is 149693923. The reversal of 149693918 is 819396941.

It is a congruent number.

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, 31463 + ... + 35906.

It is an arithmetic number, because the mean of its divisors is an integer number (15461415).

Almost surely, 2^149693918 is an apocalyptic number.

149693918 is a deficient number, since it is larger than the sum of its proper divisors (97688722).

149693918 is a wasteful number, since it uses less digits than its factorization.

149693918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67483.

The product of its digits is 419904, while the sum is 50.

The square root of 149693918 is about 12234.9465875418. The cubic root of 149693918 is about 530.9676377604.

The spelling of 149693918 in words is "one hundred forty-nine million, six hundred ninety-three thousand, nine hundred eighteen".