272575128 has 32 divisors (see below), whose sum is σ = 778786560. Its totient is φ = 77878560.

The previous prime is 272575123. The next prime is 272575133. The reversal of 272575128 is 821575272.

It is an interprime number because it is at equal distance from previous prime (272575123) and next prime (272575133).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272575123) 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 7 ways as a sum of consecutive naturals, for example, 811068 + ... + 811403.

It is an arithmetic number, because the mean of its divisors is an integer number (24337080).

Almost surely, 2^272575128 is an apocalyptic number.

272575128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

272575128 is an abundant number, since it is smaller than the sum of its proper divisors (506211432).

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

272575128 is a wasteful number, since it uses less digits than its factorization.

272575128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622487 (or 1622483 counting only the distinct ones).

The product of its digits is 78400, while the sum is 39.

The square root of 272575128 is about 16509.8494239045. The cubic root of 272575128 is about 648.3787033422.

It can be divided in two parts, 27257 and 5128, that added together give a triangular number (32385 = T₂₅₄).

The spelling of 272575128 in words is "two hundred seventy-two million, five hundred seventy-five thousand, one hundred twenty-eight".