149424817 has 8 divisors (see below), whose sum is σ = 151452000. Its totient is φ = 147403200.

The previous prime is 149424811. The next prime is 149424829. The reversal of 149424817 is 718424941.

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 149424817 - 2³ = 149424809 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 149424817.

It is not an unprimeable number, because it can be changed into a prime (149424811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98934 + ... + 100432.

It is an arithmetic number, because the mean of its divisors is an integer number (18931500).

Almost surely, 2^149424817 is an apocalyptic number.

It is an amenable number.

149424817 is a deficient number, since it is larger than the sum of its proper divisors (2027183).

149424817 is a wasteful number, since it uses less digits than its factorization.

149424817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783.

The product of its digits is 64512, while the sum is 40.

The square root of 149424817 is about 12223.9444125045. The cubic root of 149424817 is about 530.6492778488.

The spelling of 149424817 in words is "one hundred forty-nine million, four hundred twenty-four thousand, eight hundred seventeen".