402265541 has 2 divisors, whose sum is σ = 402265542. Its totient is φ = 402265540.

The previous prime is 402265531. The next prime is 402265553. The reversal of 402265541 is 145562204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389233441 + 13032100 = 19729^2 + 3610^2 .

It is a cyclic number.

It is not a de Polignac number, because 402265541 - 2¹⁴ = 402249157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402265531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201132770 + 201132771.

It is an arithmetic number, because the mean of its divisors is an integer number (201132771).

Almost surely, 2^402265541 is an apocalyptic number.

It is an amenable number.

402265541 is a deficient number, since it is larger than the sum of its proper divisors (1).

402265541 is an equidigital number, since it uses as much as digits as its factorization.

402265541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 402265541 is about 20056.5585532514. The cubic root of 402265541 is about 738.1947357866.

The spelling of 402265541 in words is "four hundred two million, two hundred sixty-five thousand, five hundred forty-one".