1162721033 has 2 divisors, whose sum is σ = 1162721034. Its totient is φ = 1162721032.

The previous prime is 1162721029. The next prime is 1162721039. The reversal of 1162721033 is 3301272611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1087152784 + 75568249 = 32972^2 + 8693^2 .

It is a cyclic number.

It is not a de Polignac number, because 1162721033 - 2² = 1162721029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1162720993 and 1162721011.

It is not a weakly prime, because it can be changed into another prime (1162721039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581360516 + 581360517.

It is an arithmetic number, because the mean of its divisors is an integer number (581360517).

Almost surely, 2^1162721033 is an apocalyptic number.

It is an amenable number.

1162721033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162721033 is an equidigital number, since it uses as much as digits as its factorization.

1162721033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1162721033 is about 34098.6954735808. The cubic root of 1162721033 is about 1051.5384953618.

Adding to 1162721033 its reverse (3301272611), we get a palindrome (4463993644).

The spelling of 1162721033 in words is "one billion, one hundred sixty-two million, seven hundred twenty-one thousand, thirty-three".