1051522987 has 2 divisors, whose sum is σ = 1051522988. Its totient is φ = 1051522986.

The previous prime is 1051522973. The next prime is 1051523027. The reversal of 1051522987 is 7892251501.

It is an a-pointer prime, because the next prime (1051523027) can be obtained adding 1051522987 to its sum of digits (40).

It is a weak prime.

It is an emirp because it is prime and its reverse (7892251501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051522987 is a prime.

It is a super-2 number, since 2×1051522987² = 2211401184378804338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051522937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525761493 + 525761494.

It is an arithmetic number, because the mean of its divisors is an integer number (525761494).

Almost surely, 2^1051522987 is an apocalyptic number.

1051522987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051522987 is an equidigital number, since it uses as much as digits as its factorization.

1051522987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 1051522987 is about 32427.1951762714. The cubic root of 1051522987 is about 1016.8875347899.

The spelling of 1051522987 in words is "one billion, fifty-one million, five hundred twenty-two thousand, nine hundred eighty-seven".