149902866 has 32 divisors (see below), whose sum is σ = 333621120. Its totient is φ = 49892112.

The previous prime is 149902849. The next prime is 149902867. The reversal of 149902866 is 668209941.

It is a happy number.

149902866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (149902867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42756 + ... + 46128.

It is an arithmetic number, because the mean of its divisors is an integer number (10425660).

Almost surely, 2^149902866 is an apocalyptic number.

149902866 is an abundant number, since it is smaller than the sum of its proper divisors (183718254).

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

149902866 is a wasteful number, since it uses less digits than its factorization.

149902866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207 (or 4201 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 149902866 is about 12243.4825927920. The cubic root of 149902866 is about 531.2145706292.

The spelling of 149902866 in words is "one hundred forty-nine million, nine hundred two thousand, eight hundred sixty-six".