1161620753 has 4 divisors (see below), whose sum is σ = 1162600560. Its totient is φ = 1160640948.

The previous prime is 1161620731. The next prime is 1161620797. The reversal of 1161620753 is 3570261611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1161620753 - 2¹² = 1161616657 is a prime.

It is a super-3 number, since 3×1161620753³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161320753) 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, 488123 + ... + 490496.

It is an arithmetic number, because the mean of its divisors is an integer number (290650140).

Almost surely, 2^1161620753 is an apocalyptic number.

It is an amenable number.

1161620753 is a deficient number, since it is larger than the sum of its proper divisors (979807).

1161620753 is an equidigital number, since it uses as much as digits as its factorization.

1161620753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979806.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1161620753 is about 34082.5578998995. The cubic root of 1161620753 is about 1051.2067012668.

The spelling of 1161620753 in words is "one billion, one hundred sixty-one million, six hundred twenty thousand, seven hundred fifty-three".