2261515471 has 2 divisors, whose sum is σ = 2261515472. Its totient is φ = 2261515470.

The previous prime is 2261515429. The next prime is 2261515481. The reversal of 2261515471 is 1745151622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2261515471 - 2¹³ = 2261507279 is a prime.

It is a super-3 number, since 3×2261515471³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261515481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130757735 + 1130757736.

It is an arithmetic number, because the mean of its divisors is an integer number (1130757736).

Almost surely, 2^2261515471 is an apocalyptic number.

2261515471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261515471 is an equidigital number, since it uses as much as digits as its factorization.

2261515471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 34.

The square root of 2261515471 is about 47555.3937109136. The cubic root of 2261515471 is about 1312.6023809599.

The spelling of 2261515471 in words is "two billion, two hundred sixty-one million, five hundred fifteen thousand, four hundred seventy-one".