1242264526553 has 8 divisors (see below), whose sum is σ = 1246894871040. Its totient is φ = 1237634523360.

The previous prime is 1242264526549. The next prime is 1242264526571. The reversal of 1242264526553 is 3556254622421.

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 1242264526553 - 2² = 1242264526549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242264526498 and 1242264526507.

It is not an unprimeable number, because it can be changed into a prime (1242264526523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9006533 + ... + 9143421.

It is an arithmetic number, because the mean of its divisors is an integer number (155861858880).

Almost surely, 2^{1242264526553} is an apocalyptic number.

It is an amenable number.

1242264526553 is a deficient number, since it is larger than the sum of its proper divisors (4630344487).

1242264526553 is a wasteful number, since it uses less digits than its factorization.

1242264526553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170647.

The product of its digits is 3456000, while the sum is 47.

The spelling of 1242264526553 in words is "one trillion, two hundred forty-two billion, two hundred sixty-four million, five hundred twenty-six thousand, five hundred fifty-three".