2143151 has 4 divisors (see below), whose sum is σ = 2201112. Its totient is φ = 2085192.

The previous prime is 2143147. The next prime is 2143157. The reversal of 2143151 is 1513412.

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 2143151 - 2² = 2143147 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 (2143157) 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, 28925 + ... + 28998.

It is an arithmetic number, because the mean of its divisors is an integer number (550278).

2^2143151 is an apocalyptic number.

2143151 is a deficient number, since it is larger than the sum of its proper divisors (57961).

2143151 is an equidigital number, since it uses as much as digits as its factorization.

2143151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57960.

The product of its digits is 120, while the sum is 17.

The square root of 2143151 is about 1463.9504773045. The cubic root of 2143151 is about 128.9290918922.

Adding to 2143151 its reverse (1513412), we get a palindrome (3656563).

It can be divided in two parts, 21431 and 51, that multiplied together give a triangular number (1092981 = T₁₄₇₈).

The spelling of 2143151 in words is "two million, one hundred forty-three thousand, one hundred fifty-one".