149947902 has 128 divisors (see below), whose sum is σ = 386104320. Its totient is φ = 42768000.

The previous prime is 149947901. The next prime is 149947957. The reversal of 149947902 is 209749941.

It is a happy number.

149947902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149947901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 597277 + ... + 597527.

It is an arithmetic number, because the mean of its divisors is an integer number (3016440).

Almost surely, 2^149947902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149947902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193052160).

149947902 is an abundant number, since it is smaller than the sum of its proper divisors (236156418).

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

149947902 is a wasteful number, since it uses less digits than its factorization.

149947902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 149947902 is about 12245.3216372621. The cubic root of 149947902 is about 531.2677637059.

The spelling of 149947902 in words is "one hundred forty-nine million, nine hundred forty-seven thousand, nine hundred two".