2261022493 has 2 divisors, whose sum is σ = 2261022494. Its totient is φ = 2261022492.

The previous prime is 2261022481. The next prime is 2261022563. The reversal of 2261022493 is 3942201622.

2261022493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2138322564 + 122699929 = 46242^2 + 11077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2261022493 is a prime.

It is a super-2 number, since 2×2261022493² = 10224445427703870098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261022443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130511246 + 1130511247.

It is an arithmetic number, because the mean of its divisors is an integer number (1130511247).

Almost surely, 2^2261022493 is an apocalyptic number.

It is an amenable number.

2261022493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261022493 is an equidigital number, since it uses as much as digits as its factorization.

2261022493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2261022493 is about 47550.2102308707. The cubic root of 2261022493 is about 1312.5069978523.

The spelling of 2261022493 in words is "two billion, two hundred sixty-one million, twenty-two thousand, four hundred ninety-three".