1226070861 has 8 divisors (see below), whose sum is σ = 1635628704. Its totient is φ = 816946800.

The previous prime is 1226070803. The next prime is 1226070877. The reversal of 1226070861 is 1680706221.

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

It is a de Polignac number, because none of the positive numbers 2^k-1226070861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226070661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101791 + ... + 113196.

It is an arithmetic number, because the mean of its divisors is an integer number (204453588).

Almost surely, 2^1226070861 is an apocalyptic number.

It is an amenable number.

1226070861 is a deficient number, since it is larger than the sum of its proper divisors (409557843).

1226070861 is a wasteful number, since it uses less digits than its factorization.

1226070861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216891.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1226070861 is about 35015.2946724713. The cubic root of 1226070861 is about 1070.2991742107.

The spelling of 1226070861 in words is "one billion, two hundred twenty-six million, seventy thousand, eight hundred sixty-one".