149509885 has 8 divisors (see below), whose sum is σ = 205042176. Its totient is φ = 102521040.

The previous prime is 149509853. The next prime is 149509891. The reversal of 149509885 is 588905941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149509885 - 2⁵ = 149509853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135821 + ... + 2135890.

It is an arithmetic number, because the mean of its divisors is an integer number (25630272).

Almost surely, 2^149509885 is an apocalyptic number.

It is an amenable number.

149509885 is a deficient number, since it is larger than the sum of its proper divisors (55532291).

149509885 is an equidigital number, since it uses as much as digits as its factorization.

149509885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271723.

The product of its (nonzero) digits is 518400, while the sum is 49.

The square root of 149509885 is about 12227.4234816661. The cubic root of 149509885 is about 530.7499588245.

The spelling of 149509885 in words is "one hundred forty-nine million, five hundred nine thousand, eight hundred eighty-five".