140243204 has 6 divisors (see below), whose sum is σ = 245425614. Its totient is φ = 70121600.

The previous prime is 140243203. The next prime is 140243219. The reversal of 140243204 is 402342041.

It can be written as a sum of positive squares in only one way, i.e., 73788100 + 66455104 = 8590^2 + 8152^2 .

It is not an unprimeable number, because it can be changed into a prime (140243203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17530397 + ... + 17530404.

It is an arithmetic number, because the mean of its divisors is an integer number (40904269).

Almost surely, 2^140243204 is an apocalyptic number.

It is an amenable number.

140243204 is a deficient number, since it is larger than the sum of its proper divisors (105182410).

140243204 is a wasteful number, since it uses less digits than its factorization.

140243204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35060805 (or 35060803 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140243204 is about 11842.4323515062. The cubic root of 140243204 is about 519.5499113248.

Adding to 140243204 its reverse (402342041), we get a palindrome (542585245).

The spelling of 140243204 in words is "one hundred forty million, two hundred forty-three thousand, two hundred four".