1161610301 has 4 divisors (see below), whose sum is σ = 1193005212. Its totient is φ = 1130215392.

The previous prime is 1161610291. The next prime is 1161610309. The reversal of 1161610301 is 1030161611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1030161611 = 383 ⋅2689717.

It can be written as a sum of positive squares in 2 ways, for example, as 871725625 + 289884676 = 29525^2 + 17026^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161610301 - 2¹⁸ = 1161348157 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 (1161610309) 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, 15697400 + ... + 15697473.

It is an arithmetic number, because the mean of its divisors is an integer number (298251303).

Almost surely, 2^1161610301 is an apocalyptic number.

It is an amenable number.

1161610301 is a deficient number, since it is larger than the sum of its proper divisors (31394911).

1161610301 is an equidigital number, since it uses as much as digits as its factorization.

1161610301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31394910.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1161610301 is about 34082.4045659927. The cubic root of 1161610301 is about 1051.2035484175.

Adding to 1161610301 its reverse (1030161611), we get a palindrome (2191771912).

The spelling of 1161610301 in words is "one billion, one hundred sixty-one million, six hundred ten thousand, three hundred one".