1242664711 has 8 divisors (see below), whose sum is σ = 1256742000. Its totient is φ = 1228622400.

The previous prime is 1242664693. The next prime is 1242664727. The reversal of 1242664711 is 1174662421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1242664711 - 2⁷ = 1242664583 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 (1242664741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66315 + ... + 82963.

It is an arithmetic number, because the mean of its divisors is an integer number (157092750).

Almost surely, 2^1242664711 is an apocalyptic number.

1242664711 is a deficient number, since it is larger than the sum of its proper divisors (14077289).

1242664711 is a wasteful number, since it uses less digits than its factorization.

1242664711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17489.

The product of its digits is 16128, while the sum is 34.

The square root of 1242664711 is about 35251.4497716051. The cubic root of 1242664711 is about 1075.1060896921.

The spelling of 1242664711 in words is "one billion, two hundred forty-two million, six hundred sixty-four thousand, seven hundred eleven".