2261615051 has 2 divisors, whose sum is σ = 2261615052. Its totient is φ = 2261615050.

The previous prime is 2261615039. The next prime is 2261615071. The reversal of 2261615051 is 1505161622.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2261615051 - 2²² = 2257420747 is a prime.

It is a super-2 number, since 2×2261615051² = 10229805277819465202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2261615071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130807525 + 1130807526.

It is an arithmetic number, because the mean of its divisors is an integer number (1130807526).

Almost surely, 2^2261615051 is an apocalyptic number.

2261615051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261615051 is an equidigital number, since it uses as much as digits as its factorization.

2261615051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2261615051 is about 47556.4406889330. The cubic root of 2261615051 is about 1312.6216463638.

Adding to 2261615051 its reverse (1505161622), we get a palindrome (3766776673).

The spelling of 2261615051 in words is "two billion, two hundred sixty-one million, six hundred fifteen thousand, fifty-one".