2152403 has 8 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 1947880.

The previous prime is 2152399. The next prime is 2152427. The reversal of 2152403 is 3042512.

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

It is not a de Polignac number, because 2152403 - 2² = 2152399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152433) 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, 4376 + ... + 4842.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

2^2152403 is an apocalyptic number.

2152403 is a deficient number, since it is larger than the sum of its proper divisors (206317).

2152403 is a wasteful number, since it uses less digits than its factorization.

2152403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2152403 is about 1467.1070172281. The cubic root of 2152403 is about 129.1143548603.

Adding to 2152403 its reverse (3042512), we get a palindrome (5194915).

The spelling of 2152403 in words is "two million, one hundred fifty-two thousand, four hundred three".