352241402581 has 2 divisors, whose sum is σ = 352241402582. Its totient is φ = 352241402580.

The previous prime is 352241402573. The next prime is 352241402659. The reversal of 352241402581 is 185204142253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302490100081 + 49751302500 = 549991^2 + 223050^2 .

It is a cyclic number.

It is not a de Polignac number, because 352241402581 - 2³ = 352241402573 is a prime.

It is a super-2 number, since 2×352241402581² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 352241402581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352241402081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176120701290 + 176120701291.

It is an arithmetic number, because the mean of its divisors is an integer number (176120701291).

Almost surely, 2^352241402581 is an apocalyptic number.

It is an amenable number.

352241402581 is a deficient number, since it is larger than the sum of its proper divisors (1).

352241402581 is an equidigital number, since it uses as much as digits as its factorization.

352241402581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 352241402581 in words is "three hundred fifty-two billion, two hundred forty-one million, four hundred two thousand, five hundred eighty-one".