140645732 has 36 divisors (see below), whose sum is σ = 257943924. Its totient is φ = 67046400.

The previous prime is 140645731. The next prime is 140645749. The reversal of 140645732 is 237546041.

140645732 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 6 ways, for example, as 28793956 + 111851776 = 5366^2 + 10576^2 .

It is a super-3 number, since 3×140645732³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (140645731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1392482 + ... + 1392582.

It is an arithmetic number, because the mean of its divisors is an integer number (7165109).

Almost surely, 2^140645732 is an apocalyptic number.

It is an amenable number.

140645732 is a deficient number, since it is larger than the sum of its proper divisors (117298192).

140645732 is a wasteful number, since it uses less digits than its factorization.

140645732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 140645732 is about 11859.4153312885. The cubic root of 140645732 is about 520.0465096467.

The spelling of 140645732 in words is "one hundred forty million, six hundred forty-five thousand, seven hundred thirty-two".