1242774499 has 2 divisors, whose sum is σ = 1242774500. Its totient is φ = 1242774498.

The previous prime is 1242774419. The next prime is 1242774503. The reversal of 1242774499 is 9944772421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242774499 - 2⁷ = 1242774371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242774419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621387249 + 621387250.

It is an arithmetic number, because the mean of its divisors is an integer number (621387250).

Almost surely, 2^1242774499 is an apocalyptic number.

1242774499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242774499 is an equidigital number, since it uses as much as digits as its factorization.

1242774499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 1242774499 is about 35253.0069497625. The cubic root of 1242774499 is about 1075.1377502225.

The spelling of 1242774499 in words is "one billion, two hundred forty-two million, seven hundred seventy-four thousand, four hundred ninety-nine".