149695199 has 2 divisors, whose sum is σ = 149695200. Its totient is φ = 149695198.

The previous prime is 149695181. The next prime is 149695211. The reversal of 149695199 is 991596941.

It is a strong prime.

It is an emirp because it is prime and its reverse (991596941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149695199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149695199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149605199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74847599 + 74847600.

It is an arithmetic number, because the mean of its divisors is an integer number (74847600).

Almost surely, 2^149695199 is an apocalyptic number.

149695199 is a deficient number, since it is larger than the sum of its proper divisors (1).

149695199 is an equidigital number, since it uses as much as digits as its factorization.

149695199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787320, while the sum is 53.

The square root of 149695199 is about 12234.9989374744. The cubic root of 149695199 is about 530.9691523345.

The spelling of 149695199 in words is "one hundred forty-nine million, six hundred ninety-five thousand, one hundred ninety-nine".