1239608087 has 2 divisors, whose sum is σ = 1239608088. Its totient is φ = 1239608086.

The previous prime is 1239608053. The next prime is 1239608107. The reversal of 1239608087 is 7808069321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1239608087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1239698087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619804043 + 619804044.

It is an arithmetic number, because the mean of its divisors is an integer number (619804044).

Almost surely, 2^1239608087 is an apocalyptic number.

1239608087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1239608087 is an equidigital number, since it uses as much as digits as its factorization.

1239608087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1239608087 is about 35208.0684928895. The cubic root of 1239608087 is about 1074.2238744753.

The spelling of 1239608087 in words is "one billion, two hundred thirty-nine million, six hundred eight thousand, eighty-seven".