2127157 has 2 divisors, whose sum is σ = 2127158. Its totient is φ = 2127156.

The previous prime is 2127149. The next prime is 2127163. The reversal of 2127157 is 7517212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2099601 + 27556 = 1449^2 + 166^2 .

It is a cyclic number.

It is not a de Polignac number, because 2127157 - 2³ = 2127149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2127557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063578 + 1063579.

It is an arithmetic number, because the mean of its divisors is an integer number (1063579).

2^2127157 is an apocalyptic number.

It is an amenable number.

2127157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2127157 is an equidigital number, since it uses as much as digits as its factorization.

2127157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 980, while the sum is 25.

The square root of 2127157 is about 1458.4776309563. The cubic root of 2127157 is about 128.6075648573.

The spelling of 2127157 in words is "two million, one hundred twenty-seven thousand, one hundred fifty-seven".