2261037461 has 4 divisors (see below), whose sum is σ = 2339004300. Its totient is φ = 2183070624.

The previous prime is 2261037439. The next prime is 2261037463. The reversal of 2261037461 is 1647301622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1294200625 + 966836836 = 35975^2 + 31094^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261037461 - 2⁶ = 2261037397 is a prime.

It is a super-2 number, since 2×2261037461² = 10224580800090653042, 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 (2261037463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38983376 + ... + 38983433.

It is an arithmetic number, because the mean of its divisors is an integer number (584751075).

Almost surely, 2^2261037461 is an apocalyptic number.

It is an amenable number.

2261037461 is a deficient number, since it is larger than the sum of its proper divisors (77966839).

2261037461 is an equidigital number, since it uses as much as digits as its factorization.

2261037461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77966838.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2261037461 is about 47550.3676221331. The cubic root of 2261037461 is about 1312.5098941174.

The spelling of 2261037461 in words is "two billion, two hundred sixty-one million, thirty-seven thousand, four hundred sixty-one".