5209148443 has 4 divisors (see below), whose sum is σ = 5210330608. Its totient is φ = 5207966280.

The previous prime is 5209148437. The next prime is 5209148453. The reversal of 5209148443 is 3448419025.

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-5209148443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5209148396 and 5209148405.

It is not an unprimeable number, because it can be changed into a prime (5209148423) 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, 584448 + ... + 593293.

It is an arithmetic number, because the mean of its divisors is an integer number (1302582652).

Almost surely, 2^5209148443 is an apocalyptic number.

5209148443 is a deficient number, since it is larger than the sum of its proper divisors (1182165).

5209148443 is a wasteful number, since it uses less digits than its factorization.

5209148443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182164.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 5209148443 is about 72174.4306731962. The cubic root of 5209148443 is about 1733.4936076361.

The spelling of 5209148443 in words is "five billion, two hundred nine million, one hundred forty-eight thousand, four hundred forty-three".