2261315047 has 2 divisors, whose sum is σ = 2261315048. Its totient is φ = 2261315046.

The previous prime is 2261315041. The next prime is 2261315059. The reversal of 2261315047 is 7405131622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2261315047 - 2⁷ = 2261314919 is a prime.

It is a super-2 number, since 2×2261315047² = 10227091483577224418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261315041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130657523 + 1130657524.

It is an arithmetic number, because the mean of its divisors is an integer number (1130657524).

Almost surely, 2^2261315047 is an apocalyptic number.

2261315047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261315047 is an equidigital number, since it uses as much as digits as its factorization.

2261315047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2261315047 is about 47553.2863953691. The cubic root of 2261315047 is about 1312.5636038958.

Adding to 2261315047 its reverse (7405131622), we get a palindrome (9666446669).

The spelling of 2261315047 in words is "two billion, two hundred sixty-one million, three hundred fifteen thousand, forty-seven".