2024021261 has 2 divisors, whose sum is σ = 2024021262. Its totient is φ = 2024021260.

The previous prime is 2024021243. The next prime is 2024021267. The reversal of 2024021261 is 1621204202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032401161 + 991620100 = 32131^2 + 31490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2024021261 - 2¹⁸ = 2023759117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2024021267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012010630 + 1012010631.

It is an arithmetic number, because the mean of its divisors is an integer number (1012010631).

Almost surely, 2^2024021261 is an apocalyptic number.

It is an amenable number.

2024021261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2024021261 is an equidigital number, since it uses as much as digits as its factorization.

2024021261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2024021261 is about 44989.1238078716. The cubic root of 2024021261 is about 1264.9451378354.

Adding to 2024021261 its reverse (1621204202), we get a palindrome (3645225463).

The spelling of 2024021261 in words is "two billion, twenty-four million, twenty-one thousand, two hundred sixty-one".