91283141161 has 9 divisors (see below), whose sum is σ = 91626133879. Its totient is φ = 90941431000.

The previous prime is 91283141153. The next prime is 91283141189. The reversal of 91283141161 is 16114138219.

The square root of 91283141161 is 302131.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 78725697561 + 12557443600 = 280581^2 + 112060^2 .

It is not a de Polignac number, because 91283141161 - 2³ = 91283141153 is a prime.

It is a super-2 number, since 2×91283141161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91283141161.

It is not an unprimeable number, because it can be changed into a prime (91283141111) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 130218111 + ... + 130218811.

Almost surely, 2^91283141161 is an apocalyptic number.

91283141161 is the 302131-st square number.

91283141161 is the 151066-th centered octagonal number.

It is an amenable number.

91283141161 is a deficient number, since it is larger than the sum of its proper divisors (342992718).

91283141161 is an frugal number, since it uses more digits than its factorization.

91283141161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 1132 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The spelling of 91283141161 in words is "ninety-one billion, two hundred eighty-three million, one hundred forty-one thousand, one hundred sixty-one".