140425540 has 48 divisors (see below), whose sum is σ = 306860400. Its totient is φ = 53914112.

The previous prime is 140425531. The next prime is 140425543. The reversal of 140425540 is 45524041.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 44542276 + 95883264 = 6674^2 + 9792^2 .

It is not an unprimeable number, because it can be changed into a prime (140425543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113646 + ... + 114874.

It is an arithmetic number, because the mean of its divisors is an integer number (6392925).

Almost surely, 2^140425540 is an apocalyptic number.

140425540 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 140425540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153430200).

140425540 is an abundant number, since it is smaller than the sum of its proper divisors (166434860).

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

140425540 is a wasteful number, since it uses less digits than its factorization.

140425540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464 (or 1462 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 140425540 is about 11850.1282693480. The cubic root of 140425540 is about 519.7749766025.

Adding to 140425540 its reverse (45524041), we get a palindrome (185949581).

The spelling of 140425540 in words is "one hundred forty million, four hundred twenty-five thousand, five hundred forty".