540849451 has 4 divisors (see below), whose sum is σ = 541273600. Its totient is φ = 540425304.

The previous prime is 540849437. The next prime is 540849479. The reversal of 540849451 is 154948045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540849451 - 2¹¹ = 540847403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540849251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210156 + ... + 212713.

It is an arithmetic number, because the mean of its divisors is an integer number (135318400).

Almost surely, 2^540849451 is an apocalyptic number.

540849451 is a deficient number, since it is larger than the sum of its proper divisors (424149).

540849451 is a wasteful number, since it uses less digits than its factorization.

540849451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424148.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 540849451 is about 23256.1701705160. The cubic root of 540849451 is about 814.7520547527.

The spelling of 540849451 in words is "five hundred forty million, eight hundred forty-nine thousand, four hundred fifty-one".