2158485 has 32 divisors (see below), whose sum is σ = 4023552. Its totient is φ = 967680.

The previous prime is 2158483. The next prime is 2158501. The reversal of 2158485 is 5848512.

It is not a de Polignac number, because 2158485 - 2¹ = 2158483 is a prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6237 + ... + 6573.

It is an arithmetic number, because the mean of its divisors is an integer number (125736).

2^2158485 is an apocalyptic number.

It is an amenable number.

2158485 is a deficient number, since it is larger than the sum of its proper divisors (1865067).

2158485 is a wasteful number, since it uses less digits than its factorization.

2158485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its digits is 12800, while the sum is 33.

The square root of 2158485 is about 1469.1783417952. The cubic root of 2158485 is about 129.2358524023.

The spelling of 2158485 in words is "two million, one hundred fifty-eight thousand, four hundred eighty-five".