1253453433415 has 8 divisors (see below), whose sum is σ = 1504153582560. Its totient is φ = 1002756438432.

The previous prime is 1253453433371. The next prime is 1253453433469. The reversal of 1253453433415 is 5143343543521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253453433415 is a prime.

It is a super-2 number, since 2×1253453433415² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197926 + ... + 1595644.

It is an arithmetic number, because the mean of its divisors is an integer number (188019197820).

Almost surely, 2^{1253453433415} is an apocalyptic number.

1253453433415 is a deficient number, since it is larger than the sum of its proper divisors (250700149145).

1253453433415 is a wasteful number, since it uses less digits than its factorization.

1253453433415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577081.

The product of its digits is 1296000, while the sum is 43.

Adding to 1253453433415 its reverse (5143343543521), we get a palindrome (6396796976936).

The spelling of 1253453433415 in words is "one trillion, two hundred fifty-three billion, four hundred fifty-three million, four hundred thirty-three thousand, four hundred fifteen".