140539740 has 96 divisors (see below), whose sum is σ = 443197440. Its totient is φ = 32966400.

The previous prime is 140539739. The next prime is 140539747. The reversal of 140539740 is 47935041.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140539747) 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 31 ways as a sum of consecutive naturals, for example, 17026 + ... + 23894.

It is an arithmetic number, because the mean of its divisors is an integer number (4616640).

Almost surely, 2^140539740 is an apocalyptic number.

140539740 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 140539740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221598720).

140539740 is an abundant number, since it is smaller than the sum of its proper divisors (302657700).

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

140539740 is a wasteful number, since it uses less digits than its factorization.

140539740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923 (or 6921 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 140539740 is about 11854.9458033346. The cubic root of 140539740 is about 519.9158394368.

The spelling of 140539740 in words is "one hundred forty million, five hundred thirty-nine thousand, seven hundred forty".