1051238887 has 8 divisors (see below), whose sum is σ = 1063923696. Its totient is φ = 1038613632.

The previous prime is 1051238879. The next prime is 1051238899. The reversal of 1051238887 is 7888321501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1051238887 - 2³ = 1051238879 is a prime.

It is a super-2 number, since 2×1051238887² = 2210206395081997538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051238807) 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 in 7 ways as a sum of consecutive naturals, for example, 21148 + ... + 50494.

It is an arithmetic number, because the mean of its divisors is an integer number (132990462).

Almost surely, 2^1051238887 is an apocalyptic number.

1051238887 is a deficient number, since it is larger than the sum of its proper divisors (12684809).

1051238887 is a wasteful number, since it uses less digits than its factorization.

1051238887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29777.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 1051238887 is about 32422.8142979600. The cubic root of 1051238887 is about 1016.7959458045.

The spelling of 1051238887 in words is "one billion, fifty-one million, two hundred thirty-eight thousand, eight hundred eighty-seven".