659743149 has 8 divisors (see below), whose sum is σ = 947323552. Its totient is φ = 405995760.

The previous prime is 659743129. The next prime is 659743159. The reversal of 659743149 is 941347956.

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

It is not a de Polignac number, because 659743149 - 2²⁴ = 642965933 is a prime.

It is a super-2 number, since 2×659743149² = 870522045304872402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 659743098 and 659743107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659743129) 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, 8458207 + ... + 8458284.

It is an arithmetic number, because the mean of its divisors is an integer number (118415444).

Almost surely, 2^659743149 is an apocalyptic number.

It is an amenable number.

659743149 is a deficient number, since it is larger than the sum of its proper divisors (287580403).

659743149 is a wasteful number, since it uses less digits than its factorization.

659743149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16916507.

The product of its digits is 816480, while the sum is 48.

The square root of 659743149 is about 25685.4657150693. The cubic root of 659743149 is about 870.5458102327.

The spelling of 659743149 in words is "six hundred fifty-nine million, seven hundred forty-three thousand, one hundred forty-nine".