540155001 has 4 divisors (see below), whose sum is σ = 720206672. Its totient is φ = 360103332.

The previous prime is 540154997. The next prime is 540155017. The reversal of 540155001 is 100551045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 540155001 - 2² = 540154997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (540155071) 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, 90025831 + ... + 90025836.

It is an arithmetic number, because the mean of its divisors is an integer number (180051668).

Almost surely, 2^540155001 is an apocalyptic number.

It is an amenable number.

540155001 is a deficient number, since it is larger than the sum of its proper divisors (180051671).

540155001 is a wasteful number, since it uses less digits than its factorization.

540155001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180051670.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 540155001 is about 23241.2349284628. The cubic root of 540155001 is about 814.4031918665.

The spelling of 540155001 in words is "five hundred forty million, one hundred fifty-five thousand, one".