140553620 has 48 divisors (see below), whose sum is σ = 315696528. Its totient is φ = 52377600.

The previous prime is 140553619. The next prime is 140553631. The reversal of 140553620 is 26355041.

It can be written as a sum of positive squares in 8 ways, for example, as 14485636 + 126067984 = 3806^2 + 11228^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140553620.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32294 + ... + 36386.

It is an arithmetic number, because the mean of its divisors is an integer number (6577011).

Almost surely, 2^140553620 is an apocalyptic number.

140553620 is a gapful number since it is divisible by the number (10) 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 140553620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157848264).

140553620 is an abundant number, since it is smaller than the sum of its proper divisors (175142908).

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

140553620 is a wasteful number, since it uses less digits than its factorization.

140553620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220 (or 4218 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 140553620 is about 11855.5311985588. The cubic root of 140553620 is about 519.9329548669.

The spelling of 140553620 in words is "one hundred forty million, five hundred fifty-three thousand, six hundred twenty".