149348321 has 2 divisors, whose sum is σ = 149348322. Its totient is φ = 149348320.

The previous prime is 149348273. The next prime is 149348327. The reversal of 149348321 is 123843941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118701025 + 30647296 = 10895^2 + 5536^2 .

It is a cyclic number.

It is not a de Polignac number, because 149348321 - 2⁶ = 149348257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149348327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74674160 + 74674161.

It is an arithmetic number, because the mean of its divisors is an integer number (74674161).

Almost surely, 2^149348321 is an apocalyptic number.

It is an amenable number.

149348321 is a deficient number, since it is larger than the sum of its proper divisors (1).

149348321 is an equidigital number, since it uses as much as digits as its factorization.

149348321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 149348321 is about 12220.8150710172. The cubic root of 149348321 is about 530.5587095017.

The spelling of 149348321 in words is "one hundred forty-nine million, three hundred forty-eight thousand, three hundred twenty-one".