140022812 has 36 divisors (see below), whose sum is σ = 264842760. Its totient is φ = 64744704.

The previous prime is 140022811. The next prime is 140022923. The reversal of 140022812 is 218220041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140022811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67178 + ... + 69230.

Almost surely, 2^140022812 is an apocalyptic number.

It is an amenable number.

140022812 is a deficient number, since it is larger than the sum of its proper divisors (124819948).

140022812 is a wasteful number, since it uses less digits than its factorization.

140022812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150 (or 2131 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 140022812 is about 11833.1235098768. The cubic root of 140022812 is about 519.2776113143.

Adding to 140022812 its reverse (218220041), we get a palindrome (358242853).

The spelling of 140022812 in words is "one hundred forty million, twenty-two thousand, eight hundred twelve".