140550061 has 4 divisors (see below), whose sum is σ = 141493500. Its totient is φ = 139606624.

The previous prime is 140550043. The next prime is 140550071. The reversal of 140550061 is 160055041.

140550061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48024900 + 92525161 = 6930^2 + 9619^2 .

It is a cyclic number.

It is not a de Polignac number, because 140550061 - 2⁵ = 140550029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140550041) 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, 471496 + ... + 471793.

It is an arithmetic number, because the mean of its divisors is an integer number (35373375).

Almost surely, 2^140550061 is an apocalyptic number.

It is an amenable number.

140550061 is a deficient number, since it is larger than the sum of its proper divisors (943439).

140550061 is an equidigital number, since it uses as much as digits as its factorization.

140550061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943438.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 140550061 is about 11855.3810988934. The cubic root of 140550061 is about 519.9285663709.

The spelling of 140550061 in words is "one hundred forty million, five hundred fifty thousand, sixty-one".