126191205 has 24 divisors (see below), whose sum is σ = 249979392. Its totient is φ = 57687264.

The previous prime is 126191189. The next prime is 126191213. The reversal of 126191205 is 502191621.

It is not a de Polignac number, because 126191205 - 2⁴ = 126191189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199989 + ... + 200618.

It is an arithmetic number, because the mean of its divisors is an integer number (10415808).

Almost surely, 2^126191205 is an apocalyptic number.

126191205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126191205 is a deficient number, since it is larger than the sum of its proper divisors (123788187).

126191205 is a wasteful number, since it uses less digits than its factorization.

126191205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400625 (or 400622 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 126191205 is about 11233.4858792807. The cubic root of 126191205 is about 501.5832546511.

It can be divided in two parts, 12619 and 1205, that added together give a cube (13824 = 24³).

The spelling of 126191205 in words is "one hundred twenty-six million, one hundred ninety-one thousand, two hundred five".