540738091 has 8 divisors (see below), whose sum is σ = 588021120. Its totient is φ = 495174528.

The previous prime is 540738061. The next prime is 540738103. The reversal of 540738091 is 190837045.

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 540738091 - 2⁷ = 540737963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540738091.

It is not an unprimeable number, because it can be changed into a prime (540738061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429211 + ... + 430468.

It is an arithmetic number, because the mean of its divisors is an integer number (73502640).

Almost surely, 2^540738091 is an apocalyptic number.

540738091 is a deficient number, since it is larger than the sum of its proper divisors (47283029).

540738091 is a wasteful number, since it uses less digits than its factorization.

540738091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859733.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 540738091 is about 23253.7758439355. The cubic root of 540738091 is about 814.6961322180.

The spelling of 540738091 in words is "five hundred forty million, seven hundred thirty-eight thousand, ninety-one".