103199149 has 4 divisors (see below), whose sum is σ = 104358780. Its totient is φ = 102039520.

The previous prime is 103199147. The next prime is 103199167. The reversal of 103199149 is 941991301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63282025 + 39917124 = 7955^2 + 6318^2 .

It is a cyclic number.

It is not a de Polignac number, because 103199149 - 2¹ = 103199147 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 (103199143) 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, 579682 + ... + 579859.

It is an arithmetic number, because the mean of its divisors is an integer number (26089695).

Almost surely, 2^103199149 is an apocalyptic number.

It is an amenable number.

103199149 is a deficient number, since it is larger than the sum of its proper divisors (1159631).

103199149 is an equidigital number, since it uses as much as digits as its factorization.

103199149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159630.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 103199149 is about 10158.6981941585. The cubic root of 103199149 is about 469.0567304683.

The spelling of 103199149 in words is "one hundred three million, one hundred ninety-nine thousand, one hundred forty-nine".