126611503 has 2 divisors, whose sum is σ = 126611504. Its totient is φ = 126611502.

The previous prime is 126611449. The next prime is 126611543. The reversal of 126611503 is 305116621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126611503 - 2¹³ = 126603311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126611543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63305751 + 63305752.

It is an arithmetic number, because the mean of its divisors is an integer number (63305752).

Almost surely, 2^126611503 is an apocalyptic number.

126611503 is a deficient number, since it is larger than the sum of its proper divisors (1).

126611503 is an equidigital number, since it uses as much as digits as its factorization.

126611503 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 126611503 is about 11252.1777003387. The cubic root of 126611503 is about 502.1395026653.

It can be divided in two parts, 1266 and 11503, that added together give a square (12769 = 113²).

The spelling of 126611503 in words is "one hundred twenty-six million, six hundred eleven thousand, five hundred three".