149679842 has 16 divisors (see below), whose sum is σ = 249591552. Its totient is φ = 66854160.

The previous prime is 149679841. The next prime is 149679851. The reversal of 149679842 is 248976941.

It is a super-2 number, since 2×149679842² = 44808110202289928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149679841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92048 + ... + 93659.

It is an arithmetic number, because the mean of its divisors is an integer number (15599472).

Almost surely, 2^149679842 is an apocalyptic number.

149679842 is a deficient number, since it is larger than the sum of its proper divisors (99911710).

149679842 is a wasteful number, since it uses less digits than its factorization.

149679842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185753.

The product of its digits is 870912, while the sum is 50.

The square root of 149679842 is about 12234.3713365256. The cubic root of 149679842 is about 530.9509946109.

The spelling of 149679842 in words is "one hundred forty-nine million, six hundred seventy-nine thousand, eight hundred forty-two".