140553887 has 8 divisors (see below), whose sum is σ = 148181760. Its totient is φ = 132949080.

The previous prime is 140553883. The next prime is 140553893. The reversal of 140553887 is 788355041.

140553887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140553887 - 2² = 140553883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140553883) 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, 7562 + ... + 18392.

It is an arithmetic number, because the mean of its divisors is an integer number (18522720).

Almost surely, 2^140553887 is an apocalyptic number.

140553887 is a deficient number, since it is larger than the sum of its proper divisors (7627873).

140553887 is a wasteful number, since it uses less digits than its factorization.

140553887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11533.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 140553887 is about 11855.5424591201. The cubic root of 140553887 is about 519.9332840936.

The spelling of 140553887 in words is "one hundred forty million, five hundred fifty-three thousand, eight hundred eighty-seven".