2261124061 has 12 divisors (see below), whose sum is σ = 2636558940. Its totient is φ = 1933485120.

The previous prime is 2261124053. The next prime is 2261124109. The reversal of 2261124061 is 1604211622.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 901800900 + 1359323161 = 30030^2 + 36869^2 .

It is not a de Polignac number, because 2261124061 - 2³ = 2261124053 is a prime.

It is a super-2 number, since 2×2261124061² = 10225364038466263442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261124031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34176 + ... + 75433.

It is an arithmetic number, because the mean of its divisors is an integer number (219713245).

Almost surely, 2^2261124061 is an apocalyptic number.

It is an amenable number.

2261124061 is a deficient number, since it is larger than the sum of its proper divisors (375434879).

2261124061 is a wasteful number, since it uses less digits than its factorization.

2261124061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110044 (or 110037 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2261124061 is about 47551.2782267733. The cubic root of 2261124061 is about 1312.5266507181.

Adding to 2261124061 its reverse (1604211622), we get a palindrome (3865335683).

The spelling of 2261124061 in words is "two billion, two hundred sixty-one million, one hundred twenty-four thousand, sixty-one".