126146503 has 4 divisors (see below), whose sum is σ = 144167440. Its totient is φ = 108125568.

The previous prime is 126146459. The next prime is 126146509. The reversal of 126146503 is 305641621.

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

It is a cyclic number.

It is not a de Polignac number, because 126146503 - 2¹⁷ = 126015431 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 (126146509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9010458 + ... + 9010471.

It is an arithmetic number, because the mean of its divisors is an integer number (36041860).

Almost surely, 2^126146503 is an apocalyptic number.

126146503 is a deficient number, since it is larger than the sum of its proper divisors (18020937).

126146503 is an equidigital number, since it uses as much as digits as its factorization.

126146503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18020936.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 126146503 is about 11231.4960267989. The cubic root of 126146503 is about 501.5240206690.

The spelling of 126146503 in words is "one hundred twenty-six million, one hundred forty-six thousand, five hundred three".