140003144 has 8 divisors (see below), whose sum is σ = 262505910. Its totient is φ = 70001568.

The previous prime is 140003137. The next prime is 140003147. The reversal of 140003144 is 441300041.

It can be written as a sum of positive squares in only one way, i.e., 93354244 + 46648900 = 9662^2 + 6830^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (140003147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8750189 + ... + 8750204.

Almost surely, 2^140003144 is an apocalyptic number.

It is an amenable number.

140003144 is a deficient number, since it is larger than the sum of its proper divisors (122502766).

140003144 is a wasteful number, since it uses less digits than its factorization.

140003144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17500399 (or 17500395 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 140003144 is about 11832.2924237022. The cubic root of 140003144 is about 519.2532971087.

Adding to 140003144 its reverse (441300041), we get a palindrome (581303185).

The spelling of 140003144 in words is "one hundred forty million, three thousand, one hundred forty-four".