2152541161 has 4 divisors (see below), whose sum is σ = 2169490432. Its totient is φ = 2135591892.

The previous prime is 2152541143. The next prime is 2152541177. The reversal of 2152541161 is 1611452512.

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 2152541161 - 2⁵ = 2152541129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152541561) 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, 8474445 + ... + 8474698.

It is an arithmetic number, because the mean of its divisors is an integer number (542372608).

Almost surely, 2^2152541161 is an apocalyptic number.

It is an amenable number.

2152541161 is a deficient number, since it is larger than the sum of its proper divisors (16949271).

2152541161 is a wasteful number, since it uses less digits than its factorization.

2152541161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16949270.

The product of its digits is 2400, while the sum is 28.

The square root of 2152541161 is about 46395.4864291776. The cubic root of 2152541161 is about 1291.1711738307.

Adding to 2152541161 its reverse (1611452512), we get a palindrome (3763993673).

The spelling of 2152541161 in words is "two billion, one hundred fifty-two million, five hundred forty-one thousand, one hundred sixty-one".