149735902 has 4 divisors (see below), whose sum is σ = 224603856. Its totient is φ = 74867950.

The previous prime is 149735863. The next prime is 149735909. The reversal of 149735902 is 209537941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 209537941 = 79 ⋅2652379.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149735909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37433974 + ... + 37433977.

It is an arithmetic number, because the mean of its divisors is an integer number (56150964).

Almost surely, 2^149735902 is an apocalyptic number.

149735902 is a deficient number, since it is larger than the sum of its proper divisors (74867954).

149735902 is an equidigital number, since it uses as much as digits as its factorization.

149735902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74867953.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 149735902 is about 12236.6622082985. The cubic root of 149735902 is about 531.0172725126.

The spelling of 149735902 in words is "one hundred forty-nine million, seven hundred thirty-five thousand, nine hundred two".