149642517 has 8 divisors (see below), whose sum is σ = 211260096. Its totient is φ = 93893312.

The previous prime is 149642513. The next prime is 149642539. The reversal of 149642517 is 715246941.

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

It is not a de Polignac number, because 149642517 - 2² = 149642513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149642513) 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, 1467033 + ... + 1467134.

It is an arithmetic number, because the mean of its divisors is an integer number (26407512).

Almost surely, 2^149642517 is an apocalyptic number.

149642517 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

149642517 is a deficient number, since it is larger than the sum of its proper divisors (61617579).

149642517 is a wasteful number, since it uses less digits than its factorization.

149642517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934187.

The product of its digits is 60480, while the sum is 39.

The square root of 149642517 is about 12232.8458258902. The cubic root of 149642517 is about 530.9068573084.

The spelling of 149642517 in words is "one hundred forty-nine million, six hundred forty-two thousand, five hundred seventeen".