140061144 has 32 divisors (see below), whose sum is σ = 353625840. Its totient is φ = 46224000.

The previous prime is 140061143. The next prime is 140061149. The reversal of 140061144 is 441160041.

It is a self number, because there is not a number n which added to its sum of digits gives 140061144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140061143) 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, 26467 + ... + 31314.

Almost surely, 2^140061144 is an apocalyptic number.

It is an amenable number.

140061144 is an abundant number, since it is smaller than the sum of its proper divisors (213564696).

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

140061144 is a wasteful number, since it uses less digits than its factorization.

140061144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57891 (or 57887 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 140061144 is about 11834.7430897337. The cubic root of 140061144 is about 519.3249920066.

The spelling of 140061144 in words is "one hundred forty million, sixty-one thousand, one hundred forty-four".