540401459 has 4 divisors (see below), whose sum is σ = 581970816. Its totient is φ = 498832104.

The previous prime is 540401447. The next prime is 540401461. The reversal of 540401459 is 954104045.

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 540401459 - 2⁸ = 540401203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540401419) 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, 20784659 + ... + 20784684.

It is an arithmetic number, because the mean of its divisors is an integer number (145492704).

Almost surely, 2^540401459 is an apocalyptic number.

540401459 is a deficient number, since it is larger than the sum of its proper divisors (41569357).

540401459 is a wasteful number, since it uses less digits than its factorization.

540401459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41569356.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 540401459 is about 23246.5364947125. The cubic root of 540401459 is about 814.5270363569.

The spelling of 540401459 in words is "five hundred forty million, four hundred one thousand, four hundred fifty-nine".