149999998 has 16 divisors (see below), whose sum is σ = 232570944. Its totient is φ = 72502560.

The previous prime is 149999957. The next prime is 150000001. The reversal of 149999998 is 899999941.

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, 5163 + ... + 18073.

It is an arithmetic number, because the mean of its divisors is an integer number (14535684).

Almost surely, 2^149999998 is an apocalyptic number.

149999998 is a deficient number, since it is larger than the sum of its proper divisors (82570946).

149999998 is a wasteful number, since it uses less digits than its factorization.

149999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13107.

The product of its digits is 17006112, while the sum is 67.

The square root of 149999998 is about 12247.4486322662. The cubic root of 149999998 is about 531.3292822298.

The spelling of 149999998 in words is "one hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".