149006139 has 8 divisors (see below), whose sum is σ = 210361680. Its totient is φ = 93494016.

The previous prime is 149006131. The next prime is 149006149. The reversal of 149006139 is 931600941.

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

It is not a de Polignac number, because 149006139 - 2³ = 149006131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149006131) 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, 1460794 + ... + 1460895.

It is an arithmetic number, because the mean of its divisors is an integer number (26295210).

Almost surely, 2^149006139 is an apocalyptic number.

149006139 is a deficient number, since it is larger than the sum of its proper divisors (61355541).

149006139 is a wasteful number, since it uses less digits than its factorization.

149006139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921709.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 149006139 is about 12206.8070763816. The cubic root of 149006139 is about 530.1532000459.

The spelling of 149006139 in words is "one hundred forty-nine million, six thousand, one hundred thirty-nine".