140537228 has 12 divisors (see below), whose sum is σ = 264858720. Its totient is φ = 64863312.

The previous prime is 140537207. The next prime is 140537251. The reversal of 140537228 is 822735041.

It is a junction number, because it is equal to n+sod(n) for n = 140537194 and 140537203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1351268 + ... + 1351371.

It is an arithmetic number, because the mean of its divisors is an integer number (22071560).

Almost surely, 2^140537228 is an apocalyptic number.

It is an amenable number.

140537228 is a deficient number, since it is larger than the sum of its proper divisors (124321492).

140537228 is a wasteful number, since it uses less digits than its factorization.

140537228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702656 (or 2702654 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 140537228 is about 11854.8398555189. The cubic root of 140537228 is about 519.9127417688.

The spelling of 140537228 in words is "one hundred forty million, five hundred thirty-seven thousand, two hundred twenty-eight".