1516723343 has 2 divisors, whose sum is σ = 1516723344. Its totient is φ = 1516723342.

The previous prime is 1516723321. The next prime is 1516723349. The reversal of 1516723343 is 3433276151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1516723343 - 2¹² = 1516719247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1516723349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758361671 + 758361672.

It is an arithmetic number, because the mean of its divisors is an integer number (758361672).

Almost surely, 2^1516723343 is an apocalyptic number.

1516723343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516723343 is an equidigital number, since it uses as much as digits as its factorization.

1516723343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 35.

The square root of 1516723343 is about 38945.1324686411. The cubic root of 1516723343 is about 1148.9526300074.

Adding to 1516723343 its reverse (3433276151), we get a palindrome (4949999494).

The spelling of 1516723343 in words is "one billion, five hundred sixteen million, seven hundred twenty-three thousand, three hundred forty-three".