149846217 has 16 divisors (see below), whose sum is σ = 210999360. Its totient is φ = 94329792.

The previous prime is 149846183. The next prime is 149846231. The reversal of 149846217 is 712648941.

It is not a de Polignac number, because 149846217 - 2⁶ = 149846153 is a prime.

It is a super-2 number, since 2×149846217² = 44907777498422178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149846287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13923 + ... + 22215.

It is an arithmetic number, because the mean of its divisors is an integer number (13187460).

Almost surely, 2^149846217 is an apocalyptic number.

It is an amenable number.

149846217 is a deficient number, since it is larger than the sum of its proper divisors (61153143).

149846217 is a wasteful number, since it uses less digits than its factorization.

149846217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8632.

The product of its digits is 96768, while the sum is 42.

The square root of 149846217 is about 12241.1689392803. The cubic root of 149846217 is about 531.1476460343.

The spelling of 149846217 in words is "one hundred forty-nine million, eight hundred forty-six thousand, two hundred seventeen".