140751540 has 48 divisors (see below), whose sum is σ = 437895360. Its totient is φ = 37533600.

The previous prime is 140751503. The next prime is 140751547. The reversal of 140751540 is 45157041.

It is a happy number.

140751540 is a `hidden beast` number, since 140 + 7 + 515 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140751547) 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, 129786 + ... + 130865.

It is an arithmetic number, because the mean of its divisors is an integer number (9122820).

Almost surely, 2^140751540 is an apocalyptic number.

140751540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140751540 is an abundant number, since it is smaller than the sum of its proper divisors (297143820).

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

140751540 is a wasteful number, since it uses less digits than its factorization.

140751540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260669 (or 260661 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 140751540 is about 11863.8754207889. The cubic root of 140751540 is about 520.1768875534.

The spelling of 140751540 in words is "one hundred forty million, seven hundred fifty-one thousand, five hundred forty".