5145631061 has 4 divisors (see below), whose sum is σ = 5147762412. Its totient is φ = 5143499712.

The previous prime is 5145631039. The next prime is 5145631063. The reversal of 5145631061 is 1601365415.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5052508561 + 93122500 = 71081^2 + 9650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5145631061 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 (5145631063) 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, 1062050 + ... + 1066883.

It is an arithmetic number, because the mean of its divisors is an integer number (1286940603).

Almost surely, 2^5145631061 is an apocalyptic number.

It is an amenable number.

5145631061 is a deficient number, since it is larger than the sum of its proper divisors (2131351).

5145631061 is a wasteful number, since it uses less digits than its factorization.

5145631061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131350.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 5145631061 is about 71733.0541730937. The cubic root of 5145631061 is about 1726.4190310169.

Adding to 5145631061 its reverse (1601365415), we get a palindrome (6746996476).

The spelling of 5145631061 in words is "five billion, one hundred forty-five million, six hundred thirty-one thousand, sixty-one".