149946917 has 8 divisors (see below), whose sum is σ = 158520960. Its totient is φ = 141441120.

The previous prime is 149946899. The next prime is 149946961. The reversal of 149946917 is 719649941.

It is a happy number.

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 149946917 - 2¹⁰ = 149945893 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 (149946997) 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, 12509 + ... + 21362.

It is an arithmetic number, because the mean of its divisors is an integer number (19815120).

Almost surely, 2^149946917 is an apocalyptic number.

It is an amenable number.

149946917 is a deficient number, since it is larger than the sum of its proper divisors (8574043).

149946917 is a wasteful number, since it uses less digits than its factorization.

149946917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34123.

The product of its digits is 489888, while the sum is 50.

The square root of 149946917 is about 12245.2814177544. The cubic root of 149946917 is about 531.2666004132.

The spelling of 149946917 in words is "one hundred forty-nine million, nine hundred forty-six thousand, nine hundred seventeen".