149006317 has 2 divisors, whose sum is σ = 149006318. Its totient is φ = 149006316.

The previous prime is 149006261. The next prime is 149006327. The reversal of 149006317 is 713600941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148986436 + 19881 = 12206^2 + 141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149006317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149006327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74503158 + 74503159.

It is an arithmetic number, because the mean of its divisors is an integer number (74503159).

Almost surely, 2^149006317 is an apocalyptic number.

It is an amenable number.

149006317 is a deficient number, since it is larger than the sum of its proper divisors (1).

149006317 is an equidigital number, since it uses as much as digits as its factorization.

149006317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 149006317 is about 12206.8143673933. The cubic root of 149006317 is about 530.1534111496.

The spelling of 149006317 in words is "one hundred forty-nine million, six thousand, three hundred seventeen".