140020252 has 6 divisors (see below), whose sum is σ = 245035448. Its totient is φ = 70010124.

The previous prime is 140020249. The next prime is 140020261. The reversal of 140020252 is 252020041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17502528 + ... + 17502535.

Almost surely, 2^140020252 is an apocalyptic number.

It is an amenable number.

140020252 is a deficient number, since it is larger than the sum of its proper divisors (105015196).

140020252 is a wasteful number, since it uses less digits than its factorization.

140020252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35005067 (or 35005065 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 140020252 is about 11833.0153384503. The cubic root of 140020252 is about 519.2744466899.

Adding to 140020252 its reverse (252020041), we get a palindrome (392040293).

The spelling of 140020252 in words is "one hundred forty million, twenty thousand, two hundred fifty-two".