2154535051 has 8 divisors (see below), whose sum is σ = 2273473440. Its totient is φ = 2037701952.

The previous prime is 2154535043. The next prime is 2154535063. The reversal of 2154535051 is 1505354512.

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 2154535051 - 2³ = 2154535043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154535351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524220 + ... + 528313.

It is an arithmetic number, because the mean of its divisors is an integer number (284184180).

Almost surely, 2^2154535051 is an apocalyptic number.

2154535051 is a deficient number, since it is larger than the sum of its proper divisors (118938389).

2154535051 is a wasteful number, since it uses less digits than its factorization.

2154535051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052645.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 2154535051 is about 46416.9694292939. The cubic root of 2154535051 is about 1291.5697196434.

Adding to 2154535051 its reverse (1505354512), we get a palindrome (3659889563).

The spelling of 2154535051 in words is "two billion, one hundred fifty-four million, five hundred thirty-five thousand, fifty-one".