149952149 has 2 divisors, whose sum is σ = 149952150. Its totient is φ = 149952148.

The previous prime is 149952119. The next prime is 149952151. The reversal of 149952149 is 941259941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123099025 + 26853124 = 11095^2 + 5182^2 .

It is an emirp because it is prime and its reverse (941259941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149952149 is a prime.

Together with 149952151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149952119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74976074 + 74976075.

It is an arithmetic number, because the mean of its divisors is an integer number (74976075).

Almost surely, 2^149952149 is an apocalyptic number.

It is an amenable number.

149952149 is a deficient number, since it is larger than the sum of its proper divisors (1).

149952149 is an equidigital number, since it uses as much as digits as its factorization.

149952149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 149952149 is about 12245.4950492007. The cubic root of 149952149 is about 531.2727793877.

The spelling of 149952149 in words is "one hundred forty-nine million, nine hundred fifty-two thousand, one hundred forty-nine".