5144620261 has 4 divisors (see below), whose sum is σ = 5612313024. Its totient is φ = 4676927500.

The previous prime is 5144620249. The next prime is 5144620303. The reversal of 5144620261 is 1620264415.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5144620261 - 2¹⁵ = 5144587493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5144620361) 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, 233846365 + ... + 233846386.

It is an arithmetic number, because the mean of its divisors is an integer number (1403078256).

Almost surely, 2^5144620261 is an apocalyptic number.

It is an amenable number.

5144620261 is a deficient number, since it is larger than the sum of its proper divisors (467692763).

5144620261 is a wasteful number, since it uses less digits than its factorization.

5144620261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467692762.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 5144620261 is about 71726.0082606024. The cubic root of 5144620261 is about 1726.3059785643.

Adding to 5144620261 its reverse (1620264415), we get a palindrome (6764884676).

The spelling of 5144620261 in words is "five billion, one hundred forty-four million, six hundred twenty thousand, two hundred sixty-one".