2261465491 has 2 divisors, whose sum is σ = 2261465492. Its totient is φ = 2261465490.

The previous prime is 2261465483. The next prime is 2261465513. The reversal of 2261465491 is 1945641622.

2261465491 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 is a cyclic number.

It is not a de Polignac number, because 2261465491 - 2³ = 2261465483 is a prime.

It is a super-2 number, since 2×2261465491² = 10228452333967742162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2261465431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130732745 + 1130732746.

It is an arithmetic number, because the mean of its divisors is an integer number (1130732746).

Almost surely, 2^2261465491 is an apocalyptic number.

2261465491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261465491 is an equidigital number, since it uses as much as digits as its factorization.

2261465491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 2261465491 is about 47554.8682155676. The cubic root of 2261465491 is about 1312.5927112862.

The spelling of 2261465491 in words is "two billion, two hundred sixty-one million, four hundred sixty-five thousand, four hundred ninety-one".