140243952 has 40 divisors (see below), whose sum is σ = 363191040. Its totient is φ = 46632640.

The previous prime is 140243933. The next prime is 140243953. The reversal of 140243952 is 259342041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140243953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17299 + ... + 24077.

It is an arithmetic number, because the mean of its divisors is an integer number (9079776).

Almost surely, 2^140243952 is an apocalyptic number.

140243952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140243952 is an abundant number, since it is smaller than the sum of its proper divisors (222947088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140243952 is a wasteful number, since it uses less digits than its factorization.

140243952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221 (or 7215 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 140243952 is about 11842.4639328140. The cubic root of 140243952 is about 519.5508350122.

Adding to 140243952 its reverse (259342041), we get a palindrome (399585993).

It can be divided in two parts, 1402 and 43952, that added together give a palindrome (45354).

The spelling of 140243952 in words is "one hundred forty million, two hundred forty-three thousand, nine hundred fifty-two".