126541603 has 2 divisors, whose sum is σ = 126541604. Its totient is φ = 126541602.

The previous prime is 126541567. The next prime is 126541609. The reversal of 126541603 is 306145621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126541603 is a prime.

It is not a weakly prime, because it can be changed into another prime (126541609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63270801 + 63270802.

It is an arithmetic number, because the mean of its divisors is an integer number (63270802).

Almost surely, 2^126541603 is an apocalyptic number.

126541603 is a deficient number, since it is larger than the sum of its proper divisors (1).

126541603 is an equidigital number, since it uses as much as digits as its factorization.

126541603 is an evil number, because the sum of its binary digits is even.

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

The square root of 126541603 is about 11249.0712061041. The cubic root of 126541603 is about 502.0470781708.

The spelling of 126541603 in words is "one hundred twenty-six million, five hundred forty-one thousand, six hundred three".