149447003 has 4 divisors (see below), whose sum is σ = 150099840. Its totient is φ = 148794168.

The previous prime is 149446993. The next prime is 149447029. The reversal of 149447003 is 300744941.

It is a happy number.

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 149447003 - 2¹⁸ = 149184859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149447303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326075 + ... + 326532.

It is an arithmetic number, because the mean of its divisors is an integer number (37524960).

Almost surely, 2^149447003 is an apocalyptic number.

149447003 is a deficient number, since it is larger than the sum of its proper divisors (652837).

149447003 is an equidigital number, since it uses as much as digits as its factorization.

149447003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652836.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 149447003 is about 12224.8518600431. The cubic root of 149447003 is about 530.6755394442.

The spelling of 149447003 in words is "one hundred forty-nine million, four hundred forty-seven thousand, three".