1161001306 has 8 divisors (see below), whose sum is σ = 1745761140. Its totient is φ = 579080928.

The previous prime is 1161001297. The next prime is 1161001307. The reversal of 1161001306 is 6031001611.

It can be written as a sum of positive squares in 2 ways, for example, as 1156340025 + 4661281 = 34005^2 + 2159^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1161001307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708841 + ... + 710476.

Almost surely, 2^1161001306 is an apocalyptic number.

1161001306 is a deficient number, since it is larger than the sum of its proper divisors (584759834).

1161001306 is a wasteful number, since it uses less digits than its factorization.

1161001306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419728.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1161001306 is about 34073.4692392776. The cubic root of 1161001306 is about 1051.0198122104.

Adding to 1161001306 its reverse (6031001611), we get a palindrome (7192002917).

The spelling of 1161001306 in words is "one billion, one hundred sixty-one million, one thousand, three hundred six".