149138413 has 2 divisors, whose sum is σ = 149138414. Its totient is φ = 149138412.

The previous prime is 149138401. The next prime is 149138447. The reversal of 149138413 is 314831941.

It is an a-pointer prime, because the next prime (149138447) can be obtained adding 149138413 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148181929 + 956484 = 12173^2 + 978^2 .

It is an emirp because it is prime and its reverse (314831941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149138413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149138113) 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, 74569206 + 74569207.

It is an arithmetic number, because the mean of its divisors is an integer number (74569207).

Almost surely, 2^149138413 is an apocalyptic number.

It is an amenable number.

149138413 is a deficient number, since it is larger than the sum of its proper divisors (1).

149138413 is an equidigital number, since it uses as much as digits as its factorization.

149138413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 149138413 is about 12212.2239170431. The cubic root of 149138413 is about 530.3100274643.

The spelling of 149138413 in words is "one hundred forty-nine million, one hundred thirty-eight thousand, four hundred thirteen".