140347540 has 24 divisors (see below), whose sum is σ = 304238592. Its totient is φ = 54327840.

The previous prime is 140347531. The next prime is 140347553. The reversal of 140347540 is 45743041.

It is a junction number, because it is equal to n+sod(n) for n = 140347499 and 140347508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112564 + ... + 113803.

It is an arithmetic number, because the mean of its divisors is an integer number (12676608).

Almost surely, 2^140347540 is an apocalyptic number.

140347540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140347540 is an abundant number, since it is smaller than the sum of its proper divisors (163891052).

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

140347540 is a wasteful number, since it uses less digits than its factorization.

140347540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226407 (or 226405 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 140347540 is about 11846.8367085902. The cubic root of 140347540 is about 519.6787216597.

The spelling of 140347540 in words is "one hundred forty million, three hundred forty-seven thousand, five hundred forty".