140015312 has 10 divisors (see below), whose sum is σ = 271279698. Its totient is φ = 70007648.

The previous prime is 140015311. The next prime is 140015321. The reversal of 140015312 is 213510041.

140015312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 78925456 + 61089856 = 8884^2 + 7816^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140015311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4375463 + ... + 4375494.

Almost surely, 2^140015312 is an apocalyptic number.

It is an amenable number.

140015312 is a deficient number, since it is larger than the sum of its proper divisors (131264386).

140015312 is an equidigital number, since it uses as much as digits as its factorization.

140015312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8750965 (or 8750959 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 140015312 is about 11832.8065986054. The cubic root of 140015312 is about 519.2683398449.

Adding to 140015312 its reverse (213510041), we get a palindrome (353525353).

The spelling of 140015312 in words is "one hundred forty million, fifteen thousand, three hundred twelve".