1240087 has 2 divisors, whose sum is σ = 1240088. Its totient is φ = 1240086.

The previous prime is 1240081. The next prime is 1240097. The reversal of 1240087 is 7800421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240087 - 2¹⁵ = 1207319 is a prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620043 + 620044.

It is an arithmetic number, because the mean of its divisors is an integer number (620044).

2^1240087 is an apocalyptic number.

1240087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240087 is an equidigital number, since it uses as much as digits as its factorization.

1240087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1240087 is about 1113.5919360340. The cubic root of 1240087 is about 107.4362196026.

The spelling of 1240087 in words is "one million, two hundred forty thousand, eighty-seven".