126156103 has 8 divisors (see below), whose sum is σ = 127847808. Its totient is φ = 124474104.

The previous prime is 126156091. The next prime is 126156193. The reversal of 126156103 is 301651621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126156103 - 2²¹ = 124058951 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 (126156193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25900 + ... + 30382.

It is an arithmetic number, because the mean of its divisors is an integer number (15980976).

Almost surely, 2^126156103 is an apocalyptic number.

126156103 is a deficient number, since it is larger than the sum of its proper divisors (1691705).

126156103 is a wasteful number, since it uses less digits than its factorization.

126156103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 126156103 is about 11231.9233882715. The cubic root of 126156103 is about 501.5367426717.

The spelling of 126156103 in words is "one hundred twenty-six million, one hundred fifty-six thousand, one hundred three".