140663536 has 40 divisors (see below), whose sum is σ = 308955920. Its totient is φ = 61502976.

The previous prime is 140663513. The next prime is 140663539. The reversal of 140663536 is 635366041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140663539) 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, 13845 + ... + 21748.

It is an arithmetic number, because the mean of its divisors is an integer number (7723898).

Almost surely, 2^140663536 is an apocalyptic number.

140663536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140663536 is an abundant number, since it is smaller than the sum of its proper divisors (168292384).

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

140663536 is a wasteful number, since it uses less digits than its factorization.

140663536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35633 (or 35627 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 140663536 is about 11860.1659347582. The cubic root of 140663536 is about 520.0684525270.

The spelling of 140663536 in words is "one hundred forty million, six hundred sixty-three thousand, five hundred thirty-six".