1451134643 has 8 divisors (see below), whose sum is σ = 1668371712. Its totient is φ = 1236380616.

The previous prime is 1451134609. The next prime is 1451134649. The reversal of 1451134643 is 3464311541.

It is a happy number.

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 1451134643 - 2²⁰ = 1450086067 is a prime.

It is a super-2 number, since 2×1451134643² = 4211583504229474898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1451134649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619505 + ... + 621842.

It is an arithmetic number, because the mean of its divisors is an integer number (208546464).

Almost surely, 2^1451134643 is an apocalyptic number.

1451134643 is a deficient number, since it is larger than the sum of its proper divisors (217237069).

1451134643 is a wasteful number, since it uses less digits than its factorization.

1451134643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241521.

The product of its digits is 17280, while the sum is 32.

The square root of 1451134643 is about 38093.7612083659. The cubic root of 1451134643 is about 1132.1463481934.

The spelling of 1451134643 in words is "one billion, four hundred fifty-one million, one hundred thirty-four thousand, six hundred forty-three".