2158357 has 2 divisors, whose sum is σ = 2158358. Its totient is φ = 2158356.

The previous prime is 2158333. The next prime is 2158367. The reversal of 2158357 is 7538512.

2158357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1454436 + 703921 = 1206^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 2158357 - 2¹¹ = 2156309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2158307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079178 + 1079179.

It is an arithmetic number, because the mean of its divisors is an integer number (1079179).

2^2158357 is an apocalyptic number.

It is an amenable number.

2158357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2158357 is an equidigital number, since it uses as much as digits as its factorization.

2158357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 2158357 is about 1469.1347793855. The cubic root of 2158357 is about 129.2332977531.

The spelling of 2158357 in words is "two million, one hundred fifty-eight thousand, three hundred fifty-seven".