149879786 has 16 divisors (see below), whose sum is σ = 272051136. Its totient is φ = 60455616.

The previous prime is 149879759. The next prime is 149879791. The reversal of 149879786 is 687978941.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314636 + ... + 315111.

It is an arithmetic number, because the mean of its divisors is an integer number (17003196).

Almost surely, 2^149879786 is an apocalyptic number.

149879786 is a deficient number, since it is larger than the sum of its proper divisors (122171350).

149879786 is a wasteful number, since it uses less digits than its factorization.

149879786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629773.

The product of its digits is 6096384, while the sum is 59.

The square root of 149879786 is about 12242.5400142291. The cubic root of 149879786 is about 531.1873061703.

The spelling of 149879786 in words is "one hundred forty-nine million, eight hundred seventy-nine thousand, seven hundred eighty-six".