140747228 has 6 divisors (see below), whose sum is σ = 246307656. Its totient is φ = 70373612.

The previous prime is 140747227. The next prime is 140747261. The reversal of 140747228 is 822747041.

It is a happy number.

It is a super-4 number, since 4×140747228⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140747227) 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 as a sum of consecutive naturals, namely, 17593400 + ... + 17593407.

It is an arithmetic number, because the mean of its divisors is an integer number (41051276).

Almost surely, 2^140747228 is an apocalyptic number.

It is an amenable number.

140747228 is a deficient number, since it is larger than the sum of its proper divisors (105560428).

140747228 is a wasteful number, since it uses less digits than its factorization.

140747228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35186811 (or 35186809 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 140747228 is about 11863.6936912582. The cubic root of 140747228 is about 520.1715755318.

The spelling of 140747228 in words is "one hundred forty million, seven hundred forty-seven thousand, two hundred twenty-eight".