5143945507 has 4 divisors (see below), whose sum is σ = 5144654320. Its totient is φ = 5143236696.

The previous prime is 5143945489. The next prime is 5143945529. The reversal of 5143945507 is 7055493415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5143945507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5143945577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343407 + ... + 358072.

It is an arithmetic number, because the mean of its divisors is an integer number (1286163580).

Almost surely, 2^5143945507 is an apocalyptic number.

5143945507 is a deficient number, since it is larger than the sum of its proper divisors (708813).

5143945507 is an equidigital number, since it uses as much as digits as its factorization.

5143945507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708812.

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 5143945507 is about 71721.3044150760. The cubic root of 5143945507 is about 1726.2305027770.

The spelling of 5143945507 in words is "five billion, one hundred forty-three million, nine hundred forty-five thousand, five hundred seven".