1161136301 has 12 divisors (see below), whose sum is σ = 1311995808. Its totient is φ = 1025213904.

The previous prime is 1161136297. The next prime is 1161136357. The reversal of 1161136301 is 1036311611.

It is not a de Polignac number, because 1161136301 - 2² = 1161136297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161136381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145475 + ... + 153248.

It is an arithmetic number, because the mean of its divisors is an integer number (109332984).

Almost surely, 2^1161136301 is an apocalyptic number.

It is an amenable number.

1161136301 is a deficient number, since it is larger than the sum of its proper divisors (150859507).

1161136301 is a wasteful number, since it uses less digits than its factorization.

1161136301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298772 (or 298759 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1161136301 is about 34075.4501217519. The cubic root of 1161136301 is about 1051.0605462791.

Adding to 1161136301 its reverse (1036311611), we get a palindrome (2197447912).

The spelling of 1161136301 in words is "one billion, one hundred sixty-one million, one hundred thirty-six thousand, three hundred one".