1130705621 has 8 divisors (see below), whose sum is σ = 1170399000. Its totient is φ = 1091059200.

The previous prime is 1130705617. The next prime is 1130705633. The reversal of 1130705621 is 1265070311.

It can be written as a sum of positive squares in 4 ways, for example, as 19483396 + 1111222225 = 4414^2 + 33335^2 .

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 1130705621 - 2² = 1130705617 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 (1130705651) 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, 41405 + ... + 63053.

It is an arithmetic number, because the mean of its divisors is an integer number (146299875).

Almost surely, 2^1130705621 is an apocalyptic number.

It is an amenable number.

1130705621 is a deficient number, since it is larger than the sum of its proper divisors (39693379).

1130705621 is a wasteful number, since it uses less digits than its factorization.

1130705621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23479.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1130705621 is about 33625.9664693820. The cubic root of 1130705621 is about 1041.7971948589.

Adding to 1130705621 its reverse (1265070311), we get a palindrome (2395775932).

The spelling of 1130705621 in words is "one billion, one hundred thirty million, seven hundred five thousand, six hundred twenty-one".