151985887 has 2 divisors, whose sum is σ = 151985888. Its totient is φ = 151985886.

The previous prime is 151985849. The next prime is 151985917. The reversal of 151985887 is 788589151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 151985887 - 2⁷ = 151985759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151985837) 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, 75992943 + 75992944.

It is an arithmetic number, because the mean of its divisors is an integer number (75992944).

Almost surely, 2^151985887 is an apocalyptic number.

151985887 is a deficient number, since it is larger than the sum of its proper divisors (1).

151985887 is an equidigital number, since it uses as much as digits as its factorization.

151985887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 52.

The square root of 151985887 is about 12328.2556349226. The cubic root of 151985887 is about 533.6638120610.

The spelling of 151985887 in words is "one hundred fifty-one million, nine hundred eighty-five thousand, eight hundred eighty-seven".