149142878 has 8 divisors (see below), whose sum is σ = 223936920. Its totient is φ = 74497240.

The previous prime is 149142863. The next prime is 149142883. The reversal of 149142878 is 878241941.

149142878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 34553 + ... + 38628.

It is an arithmetic number, because the mean of its divisors is an integer number (27992115).

Almost surely, 2^149142878 is an apocalyptic number.

149142878 is a deficient number, since it is larger than the sum of its proper divisors (74794042).

149142878 is a wasteful number, since it uses less digits than its factorization.

149142878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74202.

The product of its digits is 129024, while the sum is 44.

The square root of 149142878 is about 12212.4067243111. The cubic root of 149142878 is about 530.3153196636.

The spelling of 149142878 in words is "one hundred forty-nine million, one hundred forty-two thousand, eight hundred seventy-eight".