3561214091 has 2 divisors, whose sum is σ = 3561214092. Its totient is φ = 3561214090.

The previous prime is 3561214079. The next prime is 3561214109. The reversal of 3561214091 is 1904121653.

Together with next prime (3561214109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3561214091 - 2²² = 3557019787 is a prime.

It is not a weakly prime, because it can be changed into another prime (3561214691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780607045 + 1780607046.

It is an arithmetic number, because the mean of its divisors is an integer number (1780607046).

Almost surely, 2^3561214091 is an apocalyptic number.

3561214091 is a deficient number, since it is larger than the sum of its proper divisors (1).

3561214091 is an equidigital number, since it uses as much as digits as its factorization.

3561214091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 3561214091 is about 59675.9087991126. The cubic root of 3561214091 is about 1527.0949033585.

The spelling of 3561214091 in words is "three billion, five hundred sixty-one million, two hundred fourteen thousand, ninety-one".