1226061587 has 2 divisors, whose sum is σ = 1226061588. Its totient is φ = 1226061586.

The previous prime is 1226061521. The next prime is 1226061677. The reversal of 1226061587 is 7851606221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226061587 - 2¹⁴ = 1226045203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1226061587.

It is not a weakly prime, because it can be changed into another prime (1226061517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613030793 + 613030794.

It is an arithmetic number, because the mean of its divisors is an integer number (613030794).

Almost surely, 2^1226061587 is an apocalyptic number.

1226061587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226061587 is an equidigital number, since it uses as much as digits as its factorization.

1226061587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1226061587 is about 35015.1622443764. The cubic root of 1226061587 is about 1070.2964756229.

The spelling of 1226061587 in words is "one billion, two hundred twenty-six million, sixty-one thousand, five hundred eighty-seven".