149270317 has 6 divisors (see below), whose sum is σ = 173641038. Its totient is φ = 127945944.

The previous prime is 149270309. The next prime is 149270351. The reversal of 149270317 is 713072941.

It can be written as a sum of positive squares in only one way, i.e., 135349956 + 13920361 = 11634^2 + 3731^2 .

It is not a de Polignac number, because 149270317 - 2³ = 149270309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149270357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1523118 + ... + 1523215.

It is an arithmetic number, because the mean of its divisors is an integer number (28940173).

Almost surely, 2^149270317 is an apocalyptic number.

It is an amenable number.

149270317 is a deficient number, since it is larger than the sum of its proper divisors (24370721).

149270317 is an equidigital number, since it uses as much as digits as its factorization.

149270317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046347 (or 3046340 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 149270317 is about 12217.6232140298. The cubic root of 149270317 is about 530.4663238880.

The spelling of 149270317 in words is "one hundred forty-nine million, two hundred seventy thousand, three hundred seventeen".