1242317653 has 24 divisors (see below), whose sum is σ = 1421729280. Its totient is φ = 1082146560.

The previous prime is 1242317633. The next prime is 1242317669. The reversal of 1242317653 is 3567132421.

It is not a de Polignac number, because 1242317653 - 2¹³ = 1242309461 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242317633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203043 + ... + 209071.

It is an arithmetic number, because the mean of its divisors is an integer number (59238720).

Almost surely, 2^1242317653 is an apocalyptic number.

It is an amenable number.

1242317653 is a deficient number, since it is larger than the sum of its proper divisors (179411627).

1242317653 is a wasteful number, since it uses less digits than its factorization.

1242317653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117 (or 6100 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 1242317653 is about 35246.5268218019. The cubic root of 1242317653 is about 1075.0059932603.

The spelling of 1242317653 in words is "one billion, two hundred forty-two million, three hundred seventeen thousand, six hundred fifty-three".