1085101987 has 2 divisors, whose sum is σ = 1085101988. Its totient is φ = 1085101986.

The previous prime is 1085101967. The next prime is 1085102041. The reversal of 1085101987 is 7891015801.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085101987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1085101937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542550993 + 542550994.

It is an arithmetic number, because the mean of its divisors is an integer number (542550994).

Almost surely, 2^1085101987 is an apocalyptic number.

1085101987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085101987 is an equidigital number, since it uses as much as digits as its factorization.

1085101987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 40.

The square root of 1085101987 is about 32940.8862509800. The cubic root of 1085101987 is about 1027.5986370776.

The spelling of 1085101987 in words is "one billion, eighty-five million, one hundred one thousand, nine hundred eighty-seven".