1213087 has 2 divisors, whose sum is σ = 1213088. Its totient is φ = 1213086.

The previous prime is 1213081. The next prime is 1213097. The reversal of 1213087 is 7803121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213087 - 2¹¹ = 1211039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606543 + 606544.

It is an arithmetic number, because the mean of its divisors is an integer number (606544).

2^1213087 is an apocalyptic number.

1213087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213087 is an equidigital number, since it uses as much as digits as its factorization.

1213087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1213087 is about 1101.4022879947. The cubic root of 1213087 is about 106.6507669443.

The spelling of 1213087 in words is "one million, two hundred thirteen thousand, eighty-seven".