2163157 has 4 divisors (see below), whose sum is σ = 2193696. Its totient is φ = 2132620.

The previous prime is 2163137. The next prime is 2163163. The reversal of 2163157 is 7513612.

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 2163157 - 2¹⁹ = 1638869 is a prime.

It is a Duffinian number.

2163157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163107) 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, 15163 + ... + 15304.

It is an arithmetic number, because the mean of its divisors is an integer number (548424).

2^2163157 is an apocalyptic number.

It is an amenable number.

2163157 is a deficient number, since it is larger than the sum of its proper divisors (30539).

2163157 is an equidigital number, since it uses as much as digits as its factorization.

2163157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30538.

The product of its digits is 1260, while the sum is 25.

The square root of 2163157 is about 1470.7674867225. The cubic root of 2163157 is about 129.3290280625.

Adding to 2163157 its reverse (7513612), we get a palindrome (9676769).

The spelling of 2163157 in words is "two million, one hundred sixty-three thousand, one hundred fifty-seven".