540125644 has 24 divisors (see below), whose sum is σ = 954974720. Its totient is φ = 267288336.

The previous prime is 540125639. The next prime is 540125647. The reversal of 540125644 is 446521045.

It is a happy number.

It is a super-2 number, since 2×540125644² = 583471422612829472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540125647) 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, 202729 + ... + 205375.

Almost surely, 2^540125644 is an apocalyptic number.

It is an amenable number.

540125644 is a deficient number, since it is larger than the sum of its proper divisors (414849076).

540125644 is a wasteful number, since it uses less digits than its factorization.

540125644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 540125644 is about 23240.6033484503. The cubic root of 540125644 is about 814.3884375413.

Adding to 540125644 its reverse (446521045), we get a palindrome (986646689).

The spelling of 540125644 in words is "five hundred forty million, one hundred twenty-five thousand, six hundred forty-four".