149514903 has 20 divisors (see below), whose sum is σ = 225530448. Its totient is φ = 98703360.

The previous prime is 149514899. The next prime is 149514907. The reversal of 149514903 is 309415941.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (149514899) and next prime (149514907).

It is not a de Polignac number, because 149514903 - 2² = 149514899 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149514907) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 618 + ... + 17303.

Almost surely, 2^149514903 is an apocalyptic number.

149514903 is a deficient number, since it is larger than the sum of its proper divisors (76015545).

149514903 is a wasteful number, since it uses less digits than its factorization.

149514903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18036 (or 18027 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 149514903 is about 12227.6286744405. The cubic root of 149514903 is about 530.7558966114.

The spelling of 149514903 in words is "one hundred forty-nine million, five hundred fourteen thousand, nine hundred three".