149000999 has 4 divisors (see below), whose sum is σ = 170286864. Its totient is φ = 127715136.

The previous prime is 149000993. The next prime is 149001029. The reversal of 149000999 is 999000941.

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 149000999 - 2⁸ = 149000743 is a prime.

It is a Duffinian number.

149000999 is a modest number, since divided by 999 gives 149 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149000993) 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, 10642922 + ... + 10642935.

It is an arithmetic number, because the mean of its divisors is an integer number (42571716).

Almost surely, 2^149000999 is an apocalyptic number.

149000999 is a deficient number, since it is larger than the sum of its proper divisors (21285865).

149000999 is an equidigital number, since it uses as much as digits as its factorization.

149000999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21285864.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 149000999 is about 12206.5965362995. The cubic root of 149000999 is about 530.1471040582.

The spelling of 149000999 in words is "one hundred forty-nine million, nine hundred ninety-nine", and thus it is an aban number.