1242580797 has 16 divisors (see below), whose sum is σ = 1871040960. Its totient is φ = 814806000.

The previous prime is 1242580741. The next prime is 1242580853. The reversal of 1242580797 is 7970852421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1242580741) and next prime (1242580853).

It is not a de Polignac number, because 1242580797 - 2¹⁵ = 1242548029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242580597) 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 15 ways as a sum of consecutive naturals, for example, 375579 + ... + 378872.

It is an arithmetic number, because the mean of its divisors is an integer number (116940060).

Almost surely, 2^1242580797 is an apocalyptic number.

It is an amenable number.

1242580797 is a deficient number, since it is larger than the sum of its proper divisors (628460163).

1242580797 is an equidigital number, since it uses as much as digits as its factorization.

1242580797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754521 (or 754515 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1242580797 is about 35250.2595309595. The cubic root of 1242580797 is about 1075.0818894171.

The spelling of 1242580797 in words is "one billion, two hundred forty-two million, five hundred eighty thousand, seven hundred ninety-seven".