140553443 has 4 divisors (see below), whose sum is σ = 140577528. Its totient is φ = 140529360.

The previous prime is 140553419. The next prime is 140553461. The reversal of 140553443 is 344355041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140553443 - 2⁸ = 140553187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140553463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855 + ... + 17007.

It is an arithmetic number, because the mean of its divisors is an integer number (35144382).

Almost surely, 2^140553443 is an apocalyptic number.

140553443 is a deficient number, since it is larger than the sum of its proper divisors (24085).

140553443 is an equidigital number, since it uses as much as digits as its factorization.

140553443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24084.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 140553443 is about 11855.5237336863. The cubic root of 140553443 is about 519.9327366153.

The spelling of 140553443 in words is "one hundred forty million, five hundred fifty-three thousand, four hundred forty-three".