140528227 has 6 divisors (see below), whose sum is σ = 163471668. Its totient is φ = 120452724.

The previous prime is 140528203. The next prime is 140528231. The reversal of 140528227 is 722825041.

It is a happy number.

It is not a de Polignac number, because 140528227 - 2¹⁹ = 140003939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140520227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1433913 + ... + 1434010.

It is an arithmetic number, because the mean of its divisors is an integer number (27245278).

Almost surely, 2^140528227 is an apocalyptic number.

140528227 is a deficient number, since it is larger than the sum of its proper divisors (22943441).

140528227 is an equidigital number, since it uses as much as digits as its factorization.

140528227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867937 (or 2867930 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 140528227 is about 11854.4602154632. The cubic root of 140528227 is about 519.9016418997.

The spelling of 140528227 in words is "one hundred forty million, five hundred twenty-eight thousand, two hundred twenty-seven".