149692903 has 4 divisors (see below), whose sum is σ = 149735608. Its totient is φ = 149650200.

The previous prime is 149692891. The next prime is 149692919. The reversal of 149692903 is 309296941.

149692903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 149692903 - 2⁹ = 149692391 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149692903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149672903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15573 + ... + 23278.

It is an arithmetic number, because the mean of its divisors is an integer number (37433902).

Almost surely, 2^149692903 is an apocalyptic number.

149692903 is a deficient number, since it is larger than the sum of its proper divisors (42705).

149692903 is an equidigital number, since it uses as much as digits as its factorization.

149692903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42704.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 149692903 is about 12234.9051079279. The cubic root of 149692903 is about 530.9664376818.

The spelling of 149692903 in words is "one hundred forty-nine million, six hundred ninety-two thousand, nine hundred three".