1163930261 has 8 divisors (see below), whose sum is σ = 1262483040. Its totient is φ = 1066666032.

The previous prime is 1163930233. The next prime is 1163930269. The reversal of 1163930261 is 1620393611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1163930261 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163930269) 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, 320255 + ... + 323868.

It is an arithmetic number, because the mean of its divisors is an integer number (157810380).

Almost surely, 2^1163930261 is an apocalyptic number.

It is an amenable number.

1163930261 is a deficient number, since it is larger than the sum of its proper divisors (98552779).

1163930261 is a wasteful number, since it uses less digits than its factorization.

1163930261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644275.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1163930261 is about 34116.4221600097. The cubic root of 1163930261 is about 1051.9029018437.

The spelling of 1163930261 in words is "one billion, one hundred sixty-three million, nine hundred thirty thousand, two hundred sixty-one".