2159457 has 8 divisors (see below), whose sum is σ = 2899200. Its totient is φ = 1429680.

The previous prime is 2159453. The next prime is 2159473. The reversal of 2159457 is 7549512.

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

It is not a de Polignac number, because 2159457 - 2² = 2159453 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2159453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1969 + ... + 2862.

It is an arithmetic number, because the mean of its divisors is an integer number (362400).

2^2159457 is an apocalyptic number.

It is an amenable number.

2159457 is a deficient number, since it is larger than the sum of its proper divisors (739743).

2159457 is a wasteful number, since it uses less digits than its factorization.

2159457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4983.

The product of its digits is 12600, while the sum is 33.

The square root of 2159457 is about 1469.5091017071. The cubic root of 2159457 is about 129.2552484752.

The spelling of 2159457 in words is "two million, one hundred fifty-nine thousand, four hundred fifty-seven".