149112378 has 24 divisors (see below), whose sum is σ = 323301888. Its totient is φ = 49669512.

The previous prime is 149112329. The next prime is 149112407. The reversal of 149112378 is 873211941.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46825 + ... + 49907.

It is an arithmetic number, because the mean of its divisors is an integer number (13470912).

Almost surely, 2^149112378 is an apocalyptic number.

149112378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

149112378 is an abundant number, since it is smaller than the sum of its proper divisors (174189510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149112378 is a wasteful number, since it uses less digits than its factorization.

149112378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5778 (or 5775 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 149112378 is about 12211.1579303521. The cubic root of 149112378 is about 530.2791670379.

The spelling of 149112378 in words is "one hundred forty-nine million, one hundred twelve thousand, three hundred seventy-eight".