140021036 has 6 divisors (see below), whose sum is σ = 245036820. Its totient is φ = 70010516.

The previous prime is 140021023. The next prime is 140021107. The reversal of 140021036 is 630120041.

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 as a sum of consecutive naturals, namely, 17502626 + ... + 17502633.

It is an arithmetic number, because the mean of its divisors is an integer number (40839470).

Almost surely, 2^140021036 is an apocalyptic number.

It is an amenable number.

140021036 is a deficient number, since it is larger than the sum of its proper divisors (105015784).

140021036 is a wasteful number, since it uses less digits than its factorization.

140021036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35005263 (or 35005261 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 140021036 is about 11833.0484660547. The cubic root of 140021036 is about 519.2754158602.

Adding to 140021036 its reverse (630120041), we get a palindrome (770141077).

The spelling of 140021036 in words is "one hundred forty million, twenty-one thousand, thirty-six".