149047278 has 16 divisors (see below), whose sum is σ = 302982096. Its totient is φ = 48867840.

The previous prime is 149047273. The next prime is 149047309. The reversal of 149047278 is 872740941.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149047271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203251 + ... + 203982.

It is an arithmetic number, because the mean of its divisors is an integer number (18936381).

Almost surely, 2^149047278 is an apocalyptic number.

149047278 is an abundant number, since it is smaller than the sum of its proper divisors (153934818).

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

149047278 is a wasteful number, since it uses less digits than its factorization.

149047278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407299.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 149047278 is about 12208.4920444746. The cubic root of 149047278 is about 530.2019854311.

The spelling of 149047278 in words is "one hundred forty-nine million, forty-seven thousand, two hundred seventy-eight".