149969239 has 8 divisors (see below), whose sum is σ = 172106528. Its totient is φ = 128010240.

The previous prime is 149969221. The next prime is 149969279. The reversal of 149969239 is 932969941.

149969239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 149969239 - 2⁵ = 149969207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149969219) 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, 42762 + ... + 46135.

It is an arithmetic number, because the mean of its divisors is an integer number (21513316).

Almost surely, 2^149969239 is an apocalyptic number.

149969239 is a deficient number, since it is larger than the sum of its proper divisors (22137289).

149969239 is an equidigital number, since it uses as much as digits as its factorization.

149969239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89145.

The product of its digits is 944784, while the sum is 52.

The square root of 149969239 is about 12246.1928369596. The cubic root of 149969239 is about 531.2929616191.

The spelling of 149969239 in words is "one hundred forty-nine million, nine hundred sixty-nine thousand, two hundred thirty-nine".