1042056887 has 2 divisors, whose sum is σ = 1042056888. Its totient is φ = 1042056886.

The previous prime is 1042056833. The next prime is 1042056991. The reversal of 1042056887 is 7886502401.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042056887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042056817) 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, 521028443 + 521028444.

It is an arithmetic number, because the mean of its divisors is an integer number (521028444).

Almost surely, 2^1042056887 is an apocalyptic number.

1042056887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042056887 is an equidigital number, since it uses as much as digits as its factorization.

1042056887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 1042056887 is about 32280.9059197539. The cubic root of 1042056887 is about 1013.8268980667.

The spelling of 1042056887 in words is "one billion, forty-two million, fifty-six thousand, eight hundred eighty-seven".