1051977871 has 8 divisors (see below), whose sum is σ = 1243717920. Its totient is φ = 870602208.

The previous prime is 1051977869. The next prime is 1051977893. The reversal of 1051977871 is 1787791501.

It is a happy number.

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

It is not a de Polignac number, because 1051977871 - 2¹ = 1051977869 is a prime.

It is a super-2 number, since 2×1051977871² = 2213314882147385282, 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 (1051977271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2590876 + ... + 2591281.

It is an arithmetic number, because the mean of its divisors is an integer number (155464740).

Almost surely, 2^1051977871 is an apocalyptic number.

1051977871 is a deficient number, since it is larger than the sum of its proper divisors (191740049).

1051977871 is an equidigital number, since it uses as much as digits as its factorization.

1051977871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5182193.

The product of its (nonzero) digits is 123480, while the sum is 46.

The square root of 1051977871 is about 32434.2083455108. The cubic root of 1051977871 is about 1017.0341472717.

The spelling of 1051977871 in words is "one billion, fifty-one million, nine hundred seventy-seven thousand, eight hundred seventy-one".