1643114253 has 8 divisors (see below), whose sum is σ = 2389984416. Its totient is φ = 995826800.

The previous prime is 1643114233. The next prime is 1643114261. The reversal of 1643114253 is 3524113461.

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 1643114253 - 2¹⁰ = 1643113229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1643114253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1643114203) 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, 24895638 + ... + 24895703.

It is an arithmetic number, because the mean of its divisors is an integer number (298748052).

Almost surely, 2^1643114253 is an apocalyptic number.

It is an amenable number.

1643114253 is a deficient number, since it is larger than the sum of its proper divisors (746870163).

1643114253 is a wasteful number, since it uses less digits than its factorization.

1643114253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49791355.

The product of its digits is 8640, while the sum is 30.

The square root of 1643114253 is about 40535.3457244415. The cubic root of 1643114253 is about 1180.0196906127.

The spelling of 1643114253 in words is "one billion, six hundred forty-three million, one hundred fourteen thousand, two hundred fifty-three".