1134521642161 has 4 divisors (see below), whose sum is σ = 1134567911412. Its totient is φ = 1134475372912.

The previous prime is 1134521642159. The next prime is 1134521642237. The reversal of 1134521642161 is 1612461254311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8938567936 + 1125583074225 = 94544^2 + 1060935^2 .

It is a cyclic number.

It is not a de Polignac number, because 1134521642161 - 2¹ = 1134521642159 is a prime.

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 1134521642161.

It is not an unprimeable number, because it can be changed into a prime (1134521642131) 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, 23097826 + ... + 23146891.

It is an arithmetic number, because the mean of its divisors is an integer number (283641977853).

Almost surely, 2^{1134521642161} is an apocalyptic number.

It is an amenable number.

1134521642161 is a deficient number, since it is larger than the sum of its proper divisors (46269251).

1134521642161 is an equidigital number, since it uses as much as digits as its factorization.

1134521642161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46269250.

The product of its digits is 34560, while the sum is 37.

Adding to 1134521642161 its reverse (1612461254311), we get a palindrome (2746982896472).

The spelling of 1134521642161 in words is "one trillion, one hundred thirty-four billion, five hundred twenty-one million, six hundred forty-two thousand, one hundred sixty-one".