140512032 has 36 divisors (see below), whose sum is σ = 399581910. Its totient is φ = 46837248.

The previous prime is 140512019. The next prime is 140512033. The reversal of 140512032 is 230215041.

It can be written as a sum of positive squares in only one way, i.e., 89189136 + 51322896 = 9444^2 + 7164^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×140512032² = 39487262273538048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140511996 and 140512014.

It is not an unprimeable number, because it can be changed into a prime (140512033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243657 + ... + 244232.

Almost surely, 2^140512032 is an apocalyptic number.

140512032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140512032 is an abundant number, since it is smaller than the sum of its proper divisors (259069878).

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

140512032 is a wasteful number, since it uses less digits than its factorization.

140512032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487905 (or 487894 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 140512032 is about 11853.7771195514. Note that the first 3 decimals coincide. The cubic root of 140512032 is about 519.8816693273.

Adding to 140512032 its reverse (230215041), we get a palindrome (370727073).

The spelling of 140512032 in words is "one hundred forty million, five hundred twelve thousand, thirty-two".