2154024451 has 8 divisors (see below), whose sum is σ = 2285775360. Its totient is φ = 2025448392.

The previous prime is 2154024443. The next prime is 2154024461. The reversal of 2154024451 is 1544204512.

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

It is a cyclic number.

It is not a de Polignac number, because 2154024451 - 2³ = 2154024443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154024401) 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, 792315 + ... + 795028.

It is an arithmetic number, because the mean of its divisors is an integer number (285721920).

Almost surely, 2^2154024451 is an apocalyptic number.

2154024451 is a deficient number, since it is larger than the sum of its proper divisors (131750909).

2154024451 is a wasteful number, since it uses less digits than its factorization.

2154024451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587425.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 2154024451 is about 46411.4689597302. The cubic root of 2154024451 is about 1291.4676825316.

Adding to 2154024451 its reverse (1544204512), we get a palindrome (3698228963).

The spelling of 2154024451 in words is "two billion, one hundred fifty-four million, twenty-four thousand, four hundred fifty-one".