540128172 has 18 divisors (see below), whose sum is σ = 1260486948. Its totient is φ = 180015888.

The previous prime is 540128167. The next prime is 540128177. The reversal of 540128172 is 271821045.

It is an interprime number because it is at equal distance from previous prime (540128167) and next prime (540128177).

It is a super-3 number, since 3×540128172³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (540128177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77154 + ... + 83862.

Almost surely, 2^540128172 is an apocalyptic number.

It is an amenable number.

540128172 is an abundant number, since it is smaller than the sum of its proper divisors (720358776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540128172 is an frugal number, since it uses more digits than its factorization.

540128172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13425 (or 6714 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 540128172 is about 23240.6577359592. The cubic root of 540128172 is about 814.3897080918.

The spelling of 540128172 in words is "five hundred forty million, one hundred twenty-eight thousand, one hundred seventy-two".