1161197701 has 4 divisors (see below), whose sum is σ = 1168887904. Its totient is φ = 1153507500.

The previous prime is 1161197693. The next prime is 1161197731. The reversal of 1161197701 is 1077911611.

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 1161197701 - 2³ = 1161197693 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 (1161197731) 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, 3844875 + ... + 3845176.

It is an arithmetic number, because the mean of its divisors is an integer number (292221976).

Almost surely, 2^1161197701 is an apocalyptic number.

It is an amenable number.

1161197701 is a deficient number, since it is larger than the sum of its proper divisors (7690203).

1161197701 is an equidigital number, since it uses as much as digits as its factorization.

1161197701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690202.

The product of its (nonzero) digits is 2646, while the sum is 34.

The square root of 1161197701 is about 34076.3510517191. The cubic root of 1161197701 is about 1051.0790723786.

The spelling of 1161197701 in words is "one billion, one hundred sixty-one million, one hundred ninety-seven thousand, seven hundred one".