149103239 has 4 divisors (see below), whose sum is σ = 154244760. Its totient is φ = 143961720.

The previous prime is 149103217. The next prime is 149103247. The reversal of 149103239 is 932301941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 932301941 = 23 ⋅40534867.

It is a cyclic number.

It is not a de Polignac number, because 149103239 - 2⁸ = 149102983 is a prime.

It is a super-2 number, since 2×149103239² = 44463551760582242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149103299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2570717 + ... + 2570774.

It is an arithmetic number, because the mean of its divisors is an integer number (38561190).

Almost surely, 2^149103239 is an apocalyptic number.

149103239 is a deficient number, since it is larger than the sum of its proper divisors (5141521).

149103239 is an equidigital number, since it uses as much as digits as its factorization.

149103239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141520.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 149103239 is about 12210.7837176817. The cubic root of 149103239 is about 530.2683333289.

The spelling of 149103239 in words is "one hundred forty-nine million, one hundred three thousand, two hundred thirty-nine".