540451445 has 8 divisors (see below), whose sum is σ = 649081944. Its totient is φ = 432001024.

The previous prime is 540451433. The next prime is 540451469. The reversal of 540451445 is 544154045.

It can be written as a sum of positive squares in 4 ways, for example, as 21659716 + 518791729 = 4654^2 + 22777^2 .

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 540451445 - 2¹⁸ = 540189301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 38324 + ... + 50493.

It is an arithmetic number, because the mean of its divisors is an integer number (81135243).

Almost surely, 2^540451445 is an apocalyptic number.

It is an amenable number.

540451445 is a deficient number, since it is larger than the sum of its proper divisors (108630499).

540451445 is a wasteful number, since it uses less digits than its factorization.

540451445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90039.

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 540451445 is about 23247.6115977534. The cubic root of 540451445 is about 814.5521495960.

The spelling of 540451445 in words is "five hundred forty million, four hundred fifty-one thousand, four hundred forty-five".