149419403 has 4 divisors (see below), whose sum is σ = 170765040. Its totient is φ = 128073768.

The previous prime is 149419399. The next prime is 149419421. The reversal of 149419403 is 304914941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149419403 - 2² = 149419399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149419423) 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 3 ways as a sum of consecutive naturals, for example, 10672808 + ... + 10672821.

It is an arithmetic number, because the mean of its divisors is an integer number (42691260).

Almost surely, 2^149419403 is an apocalyptic number.

149419403 is a deficient number, since it is larger than the sum of its proper divisors (21345637).

149419403 is an equidigital number, since it uses as much as digits as its factorization.

149419403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21345636.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 149419403 is about 12223.7229598842. The cubic root of 149419403 is about 530.6428688958.

The spelling of 149419403 in words is "one hundred forty-nine million, four hundred nineteen thousand, four hundred three".