1230661133 has 8 divisors (see below), whose sum is σ = 1328829600. Its totient is φ = 1132993008.

The previous prime is 1230661129. The next prime is 1230661147. The reversal of 1230661133 is 3311660321.

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

It is a cyclic number.

It is not a de Polignac number, because 1230661133 - 2² = 1230661129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230661123) 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, 119963 + ... + 129816.

It is an arithmetic number, because the mean of its divisors is an integer number (166103700).

Almost surely, 2^1230661133 is an apocalyptic number.

1230661133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1230661133 is a deficient number, since it is larger than the sum of its proper divisors (98168467).

1230661133 is a wasteful number, since it uses less digits than its factorization.

1230661133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250171.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1230661133 is about 35080.7801082017. The cubic root of 1230661133 is about 1071.6332041899.

The spelling of 1230661133 in words is "one billion, two hundred thirty million, six hundred sixty-one thousand, one hundred thirty-three".