149453317 has 8 divisors (see below), whose sum is σ = 161415800. Its totient is φ = 137557440.

The previous prime is 149453303. The next prime is 149453351. The reversal of 149453317 is 713354941.

It can be written as a sum of positive squares in 4 ways, for example, as 40271716 + 109181601 = 6346^2 + 10449^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149453317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149453357) 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, 11934 + ... + 21007.

It is an arithmetic number, because the mean of its divisors is an integer number (20176975).

Almost surely, 2^149453317 is an apocalyptic number.

It is an amenable number.

149453317 is a deficient number, since it is larger than the sum of its proper divisors (11962483).

149453317 is a wasteful number, since it uses less digits than its factorization.

149453317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33303.

The product of its digits is 45360, while the sum is 37.

The square root of 149453317 is about 12225.1101017537. The cubic root of 149453317 is about 530.6830128586.

The spelling of 149453317 in words is "one hundred forty-nine million, four hundred fifty-three thousand, three hundred seventeen".