2153415 has 32 divisors (see below), whose sum is σ = 3889152. Its totient is φ = 1008000.

The previous prime is 2153401. The next prime is 2153419. The reversal of 2153415 is 5143512.

It is not a de Polignac number, because 2153415 - 2⁶ = 2153351 is a prime.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2153391 and 2153400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153419) 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, 4905 + ... + 5325.

It is an arithmetic number, because the mean of its divisors is an integer number (121536).

2^2153415 is an apocalyptic number.

2153415 is a deficient number, since it is larger than the sum of its proper divisors (1735737).

2153415 is a wasteful number, since it uses less digits than its factorization.

2153415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471.

The product of its digits is 600, while the sum is 21.

The square root of 2153415 is about 1467.4518731461. The cubic root of 2153415 is about 129.1345870155.

Adding to 2153415 its reverse (5143512), we get a palindrome (7296927).

The spelling of 2153415 in words is "two million, one hundred fifty-three thousand, four hundred fifteen".