140273540 has 24 divisors (see below), whose sum is σ = 321354432. Its totient is φ = 51008480.

The previous prime is 140273513. The next prime is 140273591. The reversal of 140273540 is 45372041.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318584 + ... + 319023.

It is an arithmetic number, because the mean of its divisors is an integer number (13389768).

Almost surely, 2^140273540 is an apocalyptic number.

140273540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140273540 is an abundant number, since it is smaller than the sum of its proper divisors (181080892).

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

140273540 is a wasteful number, since it uses less digits than its factorization.

140273540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637627 (or 637625 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 140273540 is about 11843.7131002064. The cubic root of 140273540 is about 519.5873698953.

The spelling of 140273540 in words is "one hundred forty million, two hundred seventy-three thousand, five hundred forty".