140722312 has 8 divisors (see below), whose sum is σ = 263854350. Its totient is φ = 70361152.

The previous prime is 140722289. The next prime is 140722313. The reversal of 140722312 is 213227041.

It can be written as a sum of positive squares in only one way, i.e., 132848676 + 7873636 = 11526^2 + 2806^2 .

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 (140722313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8795137 + ... + 8795152.

Almost surely, 2^140722312 is an apocalyptic number.

It is an amenable number.

140722312 is a deficient number, since it is larger than the sum of its proper divisors (123132038).

140722312 is a wasteful number, since it uses less digits than its factorization.

140722312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17590295 (or 17590291 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 140722312 is about 11862.6435502379. The cubic root of 140722312 is about 520.1408789892.

Adding to 140722312 its reverse (213227041), we get a palindrome (353949353).

It can be divided in two parts, 14072 and 2312, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 140722312 in words is "one hundred forty million, seven hundred twenty-two thousand, three hundred twelve".