149906378 has 8 divisors (see below), whose sum is σ = 224919840. Its totient is φ = 74933100.

The previous prime is 149906329. The next prime is 149906389. The reversal of 149906378 is 873609941.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2333 + ... + 17471.

It is an arithmetic number, because the mean of its divisors is an integer number (28114980).

Almost surely, 2^149906378 is an apocalyptic number.

149906378 is a deficient number, since it is larger than the sum of its proper divisors (75013462).

149906378 is a wasteful number, since it uses less digits than its factorization.

149906378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20092.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 149906378 is about 12243.6260151966. The cubic root of 149906378 is about 531.2187191178.

The spelling of 149906378 in words is "one hundred forty-nine million, nine hundred six thousand, three hundred seventy-eight".