2157355 has 8 divisors (see below), whose sum is σ = 2725200. Its totient is φ = 1634976.

The previous prime is 2157343. The next prime is 2157361. The reversal of 2157355 is 5537512.

2157355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2157355 - 2¹⁹ = 1633067 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11260 + ... + 11449.

It is an arithmetic number, because the mean of its divisors is an integer number (340650).

2^2157355 is an apocalyptic number.

2157355 is a deficient number, since it is larger than the sum of its proper divisors (567845).

2157355 is a wasteful number, since it uses less digits than its factorization.

2157355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22733.

The product of its digits is 5250, while the sum is 28.

The square root of 2157355 is about 1468.7937227535. The cubic root of 2157355 is about 129.2132961488.

The spelling of 2157355 in words is "two million, one hundred fifty-seven thousand, three hundred fifty-five".