159870787 has 2 divisors, whose sum is σ = 159870788. Its totient is φ = 159870786.

The previous prime is 159870749. The next prime is 159870811. The reversal of 159870787 is 787078951.

It is a strong prime.

It is an emirp because it is prime and its reverse (787078951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159870787 is a prime.

It is not a weakly prime, because it can be changed into another prime (159870587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79935393 + 79935394.

It is an arithmetic number, because the mean of its divisors is an integer number (79935394).

Almost surely, 2^159870787 is an apocalyptic number.

159870787 is a deficient number, since it is larger than the sum of its proper divisors (1).

159870787 is an equidigital number, since it uses as much as digits as its factorization.

159870787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 52.

The square root of 159870787 is about 12644.0020167667. The cubic root of 159870787 is about 542.7373431097.

The spelling of 159870787 in words is "one hundred fifty-nine million, eight hundred seventy thousand, seven hundred eighty-seven".