149889855 has 16 divisors (see below), whose sum is σ = 239984640. Its totient is φ = 79887648.

The previous prime is 149889821. The next prime is 149889877. The reversal of 149889855 is 558988941.

It is not a de Polignac number, because 149889855 - 2⁹ = 149889343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149889795 and 149889804.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31354 + ... + 35816.

It is an arithmetic number, because the mean of its divisors is an integer number (14999040).

Almost surely, 2^149889855 is an apocalyptic number.

149889855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149889855 is a deficient number, since it is larger than the sum of its proper divisors (90094785).

149889855 is a wasteful number, since it uses less digits than its factorization.

149889855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710.

The product of its digits is 4147200, while the sum is 57.

The square root of 149889855 is about 12242.9512373447. The cubic root of 149889855 is about 531.1992010481.

The spelling of 149889855 in words is "one hundred forty-nine million, eight hundred eighty-nine thousand, eight hundred fifty-five".