3512840561 has 2 divisors, whose sum is σ = 3512840562. Its totient is φ = 3512840560.

The previous prime is 3512840537. The next prime is 3512840651. The reversal of 3512840561 is 1650482153.

Together with next prime (3512840651) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2235492961 + 1277347600 = 47281^2 + 35740^2 .

It is a cyclic number.

It is not a de Polignac number, because 3512840561 - 2²⁶ = 3445731697 is a prime.

It is not a weakly prime, because it can be changed into another prime (3512840501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1756420280 + 1756420281.

It is an arithmetic number, because the mean of its divisors is an integer number (1756420281).

Almost surely, 2^3512840561 is an apocalyptic number.

It is an amenable number.

3512840561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3512840561 is an equidigital number, since it uses as much as digits as its factorization.

3512840561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 3512840561 is about 59269.2210257567. The cubic root of 3512840561 is about 1520.1489583069.

The spelling of 3512840561 in words is "three billion, five hundred twelve million, eight hundred forty thousand, five hundred sixty-one".