149610199 has 4 divisors (see below), whose sum is σ = 157484440. Its totient is φ = 141735960.

The previous prime is 149610187. The next prime is 149610211. The reversal of 149610199 is 991016941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991016941 = 127 ⋅7803283.

It is an interprime number because it is at equal distance from previous prime (149610187) and next prime (149610211).

It is a cyclic number.

It is not a de Polignac number, because 149610199 - 2²⁷ = 15392471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149610299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3937092 + ... + 3937129.

It is an arithmetic number, because the mean of its divisors is an integer number (39371110).

Almost surely, 2^149610199 is an apocalyptic number.

149610199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149610199 is a deficient number, since it is larger than the sum of its proper divisors (7874241).

149610199 is an equidigital number, since it uses as much as digits as its factorization.

149610199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7874240.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 149610199 is about 12231.5248027382. The cubic root of 149610199 is about 530.8686349202.

The spelling of 149610199 in words is "one hundred forty-nine million, six hundred ten thousand, one hundred ninety-nine".