4321157 has 2 divisors, whose sum is σ = 4321158. Its totient is φ = 4321156.

The previous prime is 4321139. The next prime is 4321169. The reversal of 4321157 is 7511234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2989441 + 1331716 = 1729^2 + 1154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4321157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4321357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160578 + 2160579.

It is an arithmetic number, because the mean of its divisors is an integer number (2160579).

Almost surely, 2^4321157 is an apocalyptic number.

It is an amenable number.

4321157 is a deficient number, since it is larger than the sum of its proper divisors (1).

4321157 is an equidigital number, since it uses as much as digits as its factorization.

4321157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 23.

The square root of 4321157 is about 2078.7392813915. The cubic root of 4321157 is about 162.8795954256.

The spelling of 4321157 in words is "four million, three hundred twenty-one thousand, one hundred fifty-seven".