149949103 has 4 divisors (see below), whose sum is σ = 151043760. Its totient is φ = 148854448.

The previous prime is 149949097. The next prime is 149949109. The reversal of 149949103 is 301949941.

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

It is an interprime number because it is at equal distance from previous prime (149949097) and next prime (149949109).

It is a cyclic number.

It is not a de Polignac number, because 149949103 - 2²⁵ = 116394671 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149949109) 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, 547123 + ... + 547396.

It is an arithmetic number, because the mean of its divisors is an integer number (37760940).

Almost surely, 2^149949103 is an apocalyptic number.

149949103 is a deficient number, since it is larger than the sum of its proper divisors (1094657).

149949103 is a wasteful number, since it uses less digits than its factorization.

149949103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094656.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 149949103 is about 12245.3706763005. The cubic root of 149949103 is about 531.2691820894.

The spelling of 149949103 in words is "one hundred forty-nine million, nine hundred forty-nine thousand, one hundred three".