540121451 has 8 divisors (see below), whose sum is σ = 544088064. Its totient is φ = 536167080.

The previous prime is 540121441. The next prime is 540121471. The reversal of 540121451 is 154121045.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540121451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540121411) 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, 97190 + ... + 102596.

It is an arithmetic number, because the mean of its divisors is an integer number (68011008).

Almost surely, 2^540121451 is an apocalyptic number.

540121451 is a deficient number, since it is larger than the sum of its proper divisors (3966613).

540121451 is a wasteful number, since it uses less digits than its factorization.

540121451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 540121451 is about 23240.5131397738. The cubic root of 540121451 is about 814.3863301677.

Adding to 540121451 its reverse (154121045), we get a palindrome (694242496).

The spelling of 540121451 in words is "five hundred forty million, one hundred twenty-one thousand, four hundred fifty-one".