126902199 has 4 divisors (see below), whose sum is σ = 169202936. Its totient is φ = 84601464.

The previous prime is 126902137. The next prime is 126902207. The reversal of 126902199 is 991209621.

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

It is not a de Polignac number, because 126902199 - 2¹² = 126898103 is a prime.

It is a super-2 number, since 2×126902199² = 32208336222071202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126902099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21150364 + ... + 21150369.

It is an arithmetic number, because the mean of its divisors is an integer number (42300734).

Almost surely, 2^126902199 is an apocalyptic number.

126902199 is a deficient number, since it is larger than the sum of its proper divisors (42300737).

126902199 is an equidigital number, since it uses as much as digits as its factorization.

126902199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42300736.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 126902199 is about 11265.0876161706. The cubic root of 126902199 is about 502.5235077243.

The spelling of 126902199 in words is "one hundred twenty-six million, nine hundred two thousand, one hundred ninety-nine".