140445536 has 48 divisors (see below), whose sum is σ = 344736000. Its totient is φ = 54718080.

The previous prime is 140445533. The next prime is 140445563. The reversal of 140445536 is 635544041.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140445533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26036 + ... + 30963.

It is an arithmetic number, because the mean of its divisors is an integer number (7182000).

Almost surely, 2^140445536 is an apocalyptic number.

140445536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140445536 is an abundant number, since it is smaller than the sum of its proper divisors (204290464).

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

140445536 is a wasteful number, since it uses less digits than its factorization.

140445536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57027 (or 57019 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 140445536 is about 11850.9719432627. The cubic root of 140445536 is about 519.7996466807.

Adding to 140445536 its reverse (635544041), we get a palindrome (775989577).

The spelling of 140445536 in words is "one hundred forty million, four hundred forty-five thousand, five hundred thirty-six".