149913199 has 2 divisors, whose sum is σ = 149913200. Its totient is φ = 149913198.

The previous prime is 149913193. The next prime is 149913223. The reversal of 149913199 is 991319941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149913199 - 2⁵ = 149913167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149913193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74956599 + 74956600.

It is an arithmetic number, because the mean of its divisors is an integer number (74956600).

Almost surely, 2^149913199 is an apocalyptic number.

149913199 is a deficient number, since it is larger than the sum of its proper divisors (1).

149913199 is an equidigital number, since it uses as much as digits as its factorization.

149913199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78732, while the sum is 46.

The square root of 149913199 is about 12243.9045651295. The cubic root of 149913199 is about 531.2267761197.

The spelling of 149913199 in words is "one hundred forty-nine million, nine hundred thirteen thousand, one hundred ninety-nine".