149297685 has 8 divisors (see below), whose sum is σ = 238876320. Its totient is φ = 79625424.

The previous prime is 149297651. The next prime is 149297693. The reversal of 149297685 is 586792941.

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

It is not a de Polignac number, because 149297685 - 2⁸ = 149297429 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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, 4976575 + ... + 4976604.

It is an arithmetic number, because the mean of its divisors is an integer number (29859540).

Almost surely, 2^149297685 is an apocalyptic number.

149297685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149297685 is a deficient number, since it is larger than the sum of its proper divisors (89578635).

149297685 is an equidigital number, since it uses as much as digits as its factorization.

149297685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9953187.

The product of its digits is 1088640, while the sum is 51.

The square root of 149297685 is about 12218.7431841413. The cubic root of 149297685 is about 530.4987413962.

The spelling of 149297685 in words is "one hundred forty-nine million, two hundred ninety-seven thousand, six hundred eighty-five".