140105532 has 96 divisors (see below), whose sum is σ = 390530560. Its totient is φ = 38257920.

The previous prime is 140105521. The next prime is 140105557. The reversal of 140105532 is 235501041.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 140105499 and 140105508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189219 + ... + 189957.

Almost surely, 2^140105532 is an apocalyptic number.

140105532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140105532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195265280).

140105532 is an abundant number, since it is smaller than the sum of its proper divisors (250425028).

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

140105532 is a wasteful number, since it uses less digits than its factorization.

140105532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 140105532 is about 11836.6182670558. The cubic root of 140105532 is about 519.3798474845.

Adding to 140105532 its reverse (235501041), we get a palindrome (375606573).

The spelling of 140105532 in words is "one hundred forty million, one hundred five thousand, five hundred thirty-two".