149048213 has 2 divisors, whose sum is σ = 149048214. Its totient is φ = 149048212.

The previous prime is 149048209. The next prime is 149048227. The reversal of 149048213 is 312840941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132871729 + 16176484 = 11527^2 + 4022^2 .

It is a cyclic number.

It is not a de Polignac number, because 149048213 - 2² = 149048209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 149048213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149048203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74524106 + 74524107.

It is an arithmetic number, because the mean of its divisors is an integer number (74524107).

Almost surely, 2^149048213 is an apocalyptic number.

It is an amenable number.

149048213 is a deficient number, since it is larger than the sum of its proper divisors (1).

149048213 is an equidigital number, since it uses as much as digits as its factorization.

149048213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 149048213 is about 12208.5303374321. The cubic root of 149048213 is about 530.2030941124.

The spelling of 149048213 in words is "one hundred forty-nine million, forty-eight thousand, two hundred thirteen".