8661051 has 12 divisors (see below), whose sum is σ = 14297712. Its totient is φ = 4949136.

The previous prime is 8661049. The next prime is 8661061. The reversal of 8661051 is 1501668.

8661051 = 113² + 114² + ... + 301².

It is not a de Polignac number, because 8661051 - 2¹ = 8661049 is a prime.

8661051 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8661001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68676 + ... + 68801.

It is an arithmetic number, because the mean of its divisors is an integer number (1191476).

Almost surely, 2^8661051 is an apocalyptic number.

8661051 is a deficient number, since it is larger than the sum of its proper divisors (5636661).

8661051 is a wasteful number, since it uses less digits than its factorization.

8661051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137490 (or 137487 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8661051 is about 2942.9663606640. The cubic root of 8661051 is about 205.3636298435.

The spelling of 8661051 in words is "eight million, six hundred sixty-one thousand, fifty-one".