2154412403 has 16 divisors (see below), whose sum is σ = 2568846336. Its totient is φ = 1780907040.

The previous prime is 2154412399. The next prime is 2154412433. The reversal of 2154412403 is 3042144512.

It is not a de Polignac number, because 2154412403 - 2² = 2154412399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154412433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102851 + ... + 122012.

It is an arithmetic number, because the mean of its divisors is an integer number (160552896).

Almost surely, 2^2154412403 is an apocalyptic number.

2154412403 is a deficient number, since it is larger than the sum of its proper divisors (414433933).

2154412403 is a wasteful number, since it uses less digits than its factorization.

2154412403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224954.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2154412403 is about 46415.6482557338. The cubic root of 2154412403 is about 1291.5452114247.

Adding to 2154412403 its reverse (3042144512), we get a palindrome (5196556915).

The spelling of 2154412403 in words is "two billion, one hundred fifty-four million, four hundred twelve thousand, four hundred three".