149842239 has 8 divisors (see below), whose sum is σ = 200312832. Its totient is φ = 99633240.

The previous prime is 149842211. The next prime is 149842261. The reversal of 149842239 is 932248941.

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

It is not a de Polignac number, because 149842239 - 2⁵ = 149842207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149842239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149842279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64057 + ... + 66354.

It is an arithmetic number, because the mean of its divisors is an integer number (25039104).

Almost surely, 2^149842239 is an apocalyptic number.

149842239 is a deficient number, since it is larger than the sum of its proper divisors (50470593).

149842239 is a wasteful number, since it uses less digits than its factorization.

149842239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130797.

The product of its digits is 124416, while the sum is 42.

The square root of 149842239 is about 12241.0064537194. The cubic root of 149842239 is about 531.1429458288.

The spelling of 149842239 in words is "one hundred forty-nine million, eight hundred forty-two thousand, two hundred thirty-nine".