126615103 has 2 divisors, whose sum is σ = 126615104. Its totient is φ = 126615102.

The previous prime is 126615101. The next prime is 126615157. The reversal of 126615103 is 301516621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126615103 - 2¹ = 126615101 is a prime.

Together with 126615101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126615101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63307551 + 63307552.

It is an arithmetic number, because the mean of its divisors is an integer number (63307552).

Almost surely, 2^126615103 is an apocalyptic number.

126615103 is a deficient number, since it is larger than the sum of its proper divisors (1).

126615103 is an equidigital number, since it uses as much as digits as its factorization.

126615103 is an evil number, because the sum of its binary digits is even.

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

The square root of 126615103 is about 11252.3376682359. The cubic root of 126615103 is about 502.1442618039.

The spelling of 126615103 in words is "one hundred twenty-six million, six hundred fifteen thousand, one hundred three".