1156646241 has 24 divisors (see below), whose sum is σ = 1745315520. Its totient is φ = 736740576.

The previous prime is 1156646213. The next prime is 1156646273. The reversal of 1156646241 is 1426466511.

1156646241 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 646 + 2 + 4 + 1 = 666.

It is not a de Polignac number, because 1156646241 - 2²³ = 1148257633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1156646196 and 1156646205.

It is not an unprimeable number, because it can be changed into a prime (1156642241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218670 + ... + 223896.

It is an arithmetic number, because the mean of its divisors is an integer number (72721480).

Almost surely, 2^1156646241 is an apocalyptic number.

It is an amenable number.

1156646241 is a deficient number, since it is larger than the sum of its proper divisors (588669279).

1156646241 is a wasteful number, since it uses less digits than its factorization.

1156646241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6325 (or 6322 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 1156646241 is about 34009.5022162924. The cubic root of 1156646241 is about 1049.7039954730.

The spelling of 1156646241 in words is "one billion, one hundred fifty-six million, six hundred forty-six thousand, two hundred forty-one".