5161501123 has 2 divisors, whose sum is σ = 5161501124. Its totient is φ = 5161501122.

The previous prime is 5161501067. The next prime is 5161501141. The reversal of 5161501123 is 3211051615.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5161501123 is a prime.

It is a super-2 number, since 2×5161501123² = 53282187685460522258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5161507123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580750561 + 2580750562.

It is an arithmetic number, because the mean of its divisors is an integer number (2580750562).

Almost surely, 2^5161501123 is an apocalyptic number.

5161501123 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161501123 is an equidigital number, since it uses as much as digits as its factorization.

5161501123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 5161501123 is about 71843.5879045583. The cubic root of 5161501123 is about 1728.1920728918.

Adding to 5161501123 its reverse (3211051615), we get a palindrome (8372552738).

The spelling of 5161501123 in words is "five billion, one hundred sixty-one million, five hundred one thousand, one hundred twenty-three".