149539403 has 8 divisors (see below), whose sum is σ = 161250096. Its totient is φ = 137858400.

The previous prime is 149539391. The next prime is 149539409. The reversal of 149539403 is 304935941.

149539403 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 149539403 - 2⁴ = 149539387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149539409) 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, 3668 + ... + 17678.

It is an arithmetic number, because the mean of its divisors is an integer number (20156262).

Almost surely, 2^149539403 is an apocalyptic number.

149539403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

149539403 is a deficient number, since it is larger than the sum of its proper divisors (11710693).

149539403 is a wasteful number, since it uses less digits than its factorization.

149539403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14845.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 149539403 is about 12228.6304629750. The cubic root of 149539403 is about 530.7848854925.

The spelling of 149539403 in words is "one hundred forty-nine million, five hundred thirty-nine thousand, four hundred three".