149256985 has 8 divisors (see below), whose sum is σ = 179174016. Its totient is φ = 119361840.

The previous prime is 149256977. The next prime is 149257021. The reversal of 149256985 is 589652941.

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

It is not a de Polignac number, because 149256985 - 2³ = 149256977 is a prime.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23280 + ... + 28990.

It is an arithmetic number, because the mean of its divisors is an integer number (22396752).

Almost surely, 2^149256985 is an apocalyptic number.

It is an amenable number.

149256985 is a deficient number, since it is larger than the sum of its proper divisors (29917031).

149256985 is an equidigital number, since it uses as much as digits as its factorization.

149256985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10943.

The product of its digits is 777600, while the sum is 49.

The square root of 149256985 is about 12217.0775965449. The cubic root of 149256985 is about 530.4505306441.

The spelling of 149256985 in words is "one hundred forty-nine million, two hundred fifty-six thousand, nine hundred eighty-five".