2261515429 has 2 divisors, whose sum is σ = 2261515430. Its totient is φ = 2261515428.

The previous prime is 2261515391. The next prime is 2261515471. The reversal of 2261515429 is 9245151622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2181824100 + 79691329 = 46710^2 + 8927^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261515429 - 2¹⁹ = 2260991141 is a prime.

It is a super-2 number, since 2×2261515429² = 10228904071210108082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261515129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130757714 + 1130757715.

It is an arithmetic number, because the mean of its divisors is an integer number (1130757715).

Almost surely, 2^2261515429 is an apocalyptic number.

It is an amenable number.

2261515429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261515429 is an equidigital number, since it uses as much as digits as its factorization.

2261515429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 2261515429 is about 47555.3932693233. The cubic root of 2261515429 is about 1312.6023728342.

The spelling of 2261515429 in words is "two billion, two hundred sixty-one million, five hundred fifteen thousand, four hundred twenty-nine".