140520250 has 32 divisors (see below), whose sum is σ = 283295376. Its totient is φ = 51883200.

The previous prime is 140520227. The next prime is 140520251. The reversal of 140520250 is 52025041.

It can be written as a sum of positive squares in 8 ways, for example, as 14160169 + 126360081 = 3763^2 + 11241^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140520251) by changing a digit.

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, 18369 + ... + 24868.

Almost surely, 2^140520250 is an apocalyptic number.

140520250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140520250 is an abundant number, since it is smaller than the sum of its proper divisors (142775126).

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

140520250 is a wasteful number, since it uses less digits than its factorization.

140520250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43267 (or 43257 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 140520250 is about 11854.1237550483. The cubic root of 140520250 is about 519.8918044126.

Adding to 140520250 its reverse (52025041), we get a palindrome (192545291).

The spelling of 140520250 in words is "one hundred forty million, five hundred twenty thousand, two hundred fifty".