149718317 has 8 divisors (see below), whose sum is σ = 175731456. Its totient is φ = 124861392.

The previous prime is 149718311. The next prime is 149718323. The reversal of 149718317 is 713817941.

It is an interprime number because it is at equal distance from previous prime (149718311) and next prime (149718323).

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

It is a cyclic number.

It is not a de Polignac number, because 149718317 - 2⁴ = 149718301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149718311) 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 7 ways as a sum of consecutive naturals, for example, 288773 + ... + 289290.

It is an arithmetic number, because the mean of its divisors is an integer number (21966432).

Almost surely, 2^149718317 is an apocalyptic number.

It is an amenable number.

149718317 is a deficient number, since it is larger than the sum of its proper divisors (26013139).

149718317 is an equidigital number, since it uses as much as digits as its factorization.

149718317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578107.

The product of its digits is 42336, while the sum is 41.

The square root of 149718317 is about 12235.9436497558. The cubic root of 149718317 is about 530.9964841241.

The spelling of 149718317 in words is "one hundred forty-nine million, seven hundred eighteen thousand, three hundred seventeen".