261452353 has 2 divisors, whose sum is σ = 261452354. Its totient is φ = 261452352.

The previous prime is 261452327. The next prime is 261452381. The reversal of 261452353 is 353254162.

It is a happy number.

261452353 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., 220581904 + 40870449 = 14852^2 + 6393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261452353 is a prime.

It is not a weakly prime, because it can be changed into another prime (261452153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130726176 + 130726177.

It is an arithmetic number, because the mean of its divisors is an integer number (130726177).

Almost surely, 2^261452353 is an apocalyptic number.

It is an amenable number.

261452353 is a deficient number, since it is larger than the sum of its proper divisors (1).

261452353 is an equidigital number, since it uses as much as digits as its factorization.

261452353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 261452353 is about 16169.4883345145. The cubic root of 261452353 is about 639.4366404792.

The spelling of 261452353 in words is "two hundred sixty-one million, four hundred fifty-two thousand, three hundred fifty-three".