149830717 has 8 divisors (see below), whose sum is σ = 156469824. Its totient is φ = 143202048.

The previous prime is 149830691. The next prime is 149830727. The reversal of 149830717 is 717038941.

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

It is not a de Polignac number, because 149830717 - 2⁷ = 149830589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149830717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149830727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47058 + ... + 50140.

It is an arithmetic number, because the mean of its divisors is an integer number (19558728).

Almost surely, 2^149830717 is an apocalyptic number.

It is an amenable number.

149830717 is a deficient number, since it is larger than the sum of its proper divisors (6639107).

149830717 is a wasteful number, since it uses less digits than its factorization.

149830717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 149830717 is about 12240.5358134356. The cubic root of 149830717 is about 531.1293315415.

The spelling of 149830717 in words is "one hundred forty-nine million, eight hundred thirty thousand, seven hundred seventeen".