149523417 has 12 divisors (see below), whose sum is σ = 216299824. Its totient is φ = 99533880.

The previous prime is 149523343. The next prime is 149523443. The reversal of 149523417 is 714325941.

It is not a de Polignac number, because 149523417 - 2²² = 145329113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149523457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5803 + ... + 18240.

Almost surely, 2^149523417 is an apocalyptic number.

It is an amenable number.

149523417 is a deficient number, since it is larger than the sum of its proper divisors (66776407).

149523417 is a wasteful number, since it uses less digits than its factorization.

149523417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24740 (or 24737 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 149523417 is about 12227.9768154834. The cubic root of 149523417 is about 530.7659709024.

The spelling of 149523417 in words is "one hundred forty-nine million, five hundred twenty-three thousand, four hundred seventeen".