540136445 has 8 divisors (see below), whose sum is σ = 659149920. Its totient is φ = 424785040.

The previous prime is 540136423. The next prime is 540136447. The reversal of 540136445 is 544631045.

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

It is not a de Polignac number, because 540136445 - 2¹² = 540132349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540136447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915191 + ... + 915780.

It is an arithmetic number, because the mean of its divisors is an integer number (82393740).

Almost surely, 2^540136445 is an apocalyptic number.

It is an amenable number.

540136445 is a deficient number, since it is larger than the sum of its proper divisors (119013475).

540136445 is a wasteful number, since it uses less digits than its factorization.

540136445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831035.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 540136445 is about 23240.8357207739. The cubic root of 540136445 is about 814.3938660010.

The spelling of 540136445 in words is "five hundred forty million, one hundred thirty-six thousand, four hundred forty-five".