1226054661 has 8 divisors (see below), whose sum is σ = 1760488800. Its totient is φ = 754495152.

The previous prime is 1226054653. The next prime is 1226054689. The reversal of 1226054661 is 1664506221.

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

It is not a de Polignac number, because 1226054661 - 2³ = 1226054653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226054651) 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, 15718611 + ... + 15718688.

It is an arithmetic number, because the mean of its divisors is an integer number (220061100).

Almost surely, 2^1226054661 is an apocalyptic number.

It is an amenable number.

1226054661 is a deficient number, since it is larger than the sum of its proper divisors (534434139).

1226054661 is a wasteful number, since it uses less digits than its factorization.

1226054661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31437315.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1226054661 is about 35015.0633442237. The cubic root of 1226054661 is about 1070.2944602572.

The spelling of 1226054661 in words is "one billion, two hundred twenty-six million, fifty-four thousand, six hundred sixty-one".