1245534403 has 2 divisors, whose sum is σ = 1245534404. Its totient is φ = 1245534402.

The previous prime is 1245534391. The next prime is 1245534413. The reversal of 1245534403 is 3044355421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1245534403 - 2⁵ = 1245534371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245534413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622767201 + 622767202.

It is an arithmetic number, because the mean of its divisors is an integer number (622767202).

Almost surely, 2^1245534403 is an apocalyptic number.

1245534403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245534403 is an equidigital number, since it uses as much as digits as its factorization.

1245534403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 1245534403 is about 35292.1294766978. The cubic root of 1245534403 is about 1075.9330361329.

Adding to 1245534403 its reverse (3044355421), we get a palindrome (4289889824).

The spelling of 1245534403 in words is "one billion, two hundred forty-five million, five hundred thirty-four thousand, four hundred three".