2155452167 has 4 divisors (see below), whose sum is σ = 2351402376. Its totient is φ = 1959501960.

The previous prime is 2155452157. The next prime is 2155452181. The reversal of 2155452167 is 7612545512.

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

It is a cyclic number.

It is not a de Polignac number, because 2155452167 - 2⁸ = 2155451911 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 2155452167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155452137) 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, 97975088 + ... + 97975109.

It is an arithmetic number, because the mean of its divisors is an integer number (587850594).

Almost surely, 2^2155452167 is an apocalyptic number.

2155452167 is a deficient number, since it is larger than the sum of its proper divisors (195950209).

2155452167 is a wasteful number, since it uses less digits than its factorization.

2155452167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195950208.

The product of its digits is 84000, while the sum is 38.

The square root of 2155452167 is about 46426.8474807411. The cubic root of 2155452167 is about 1291.7529534883.

Adding to 2155452167 its reverse (7612545512), we get a palindrome (9767997679).

It can be divided in two parts, 215545 and 2167, that added together give a palindrome (217712).

The spelling of 2155452167 in words is "two billion, one hundred fifty-five million, four hundred fifty-two thousand, one hundred sixty-seven".