1050661871 has 12 divisors (see below), whose sum is σ = 1250624232. Its totient is φ = 879622128.

The previous prime is 1050661861. The next prime is 1050661883. The reversal of 1050661871 is 1781660501.

It is a de Polignac number, because none of the positive numbers 2^k-1050661871 is a prime.

It is a super-2 number, since 2×1050661871² = 2207780734346441282, 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 (1050661841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247220 + ... + 251433.

It is an arithmetic number, because the mean of its divisors is an integer number (104218686).

Almost surely, 2^1050661871 is an apocalyptic number.

1050661871 is a deficient number, since it is larger than the sum of its proper divisors (199962361).

1050661871 is an equidigital number, since it uses as much as digits as its factorization.

1050661871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498710 (or 498703 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 1050661871 is about 32413.9147743681. The cubic root of 1050661871 is about 1016.6098749010.

The spelling of 1050661871 in words is "one billion, fifty million, six hundred sixty-one thousand, eight hundred seventy-one".