149213 has 2 divisors, whose sum is σ = 149214. Its totient is φ = 149212.

The previous prime is 149197. The next prime is 149239. The reversal of 149213 is 312941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114244 + 34969 = 338^2 + 187^2 .

It is an emirp because it is prime and its reverse (312941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149213 - 2⁴ = 149197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74606 + 74607.

It is an arithmetic number, because the mean of its divisors is an integer number (74607).

2¹⁴⁹²¹³ is an apocalyptic number.

It is an amenable number.

149213 is a deficient number, since it is larger than the sum of its proper divisors (1).

149213 is an equidigital number, since it uses as much as digits as its factorization.

149213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

The square root of 149213 is about 386.2809858121. The cubic root of 149213 is about 53.0398418825.

The spelling of 149213 in words is "one hundred forty-nine thousand, two hundred thirteen".