149105717 has 8 divisors (see below), whose sum is σ = 151122720. Its totient is φ = 147102480.

The previous prime is 149105707. The next prime is 149105729. The reversal of 149105717 is 717501941.

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 149105717 - 2²² = 144911413 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 (149105707) 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, 19367 + ... + 25947.

It is an arithmetic number, because the mean of its divisors is an integer number (18890340).

Almost surely, 2^149105717 is an apocalyptic number.

It is an amenable number.

149105717 is a deficient number, since it is larger than the sum of its proper divisors (2017003).

149105717 is a wasteful number, since it uses less digits than its factorization.

149105717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6883.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 149105717 is about 12210.8851849487. The cubic root of 149105717 is about 530.2712708856.

The spelling of 149105717 in words is "one hundred forty-nine million, one hundred five thousand, seven hundred seventeen".