140421461 has 4 divisors (see below), whose sum is σ = 140524524. Its totient is φ = 140318400.

The previous prime is 140421431. The next prime is 140421511. The reversal of 140421461 is 164124041.

It is a happy number.

140421461 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 55965361 + 84456100 = 7481^2 + 9190^2 .

It is a cyclic number.

It is not a de Polignac number, because 140421461 - 2⁶ = 140421397 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 (140421431) 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, 49460 + ... + 52221.

It is an arithmetic number, because the mean of its divisors is an integer number (35131131).

Almost surely, 2^140421461 is an apocalyptic number.

It is an amenable number.

140421461 is a deficient number, since it is larger than the sum of its proper divisors (103063).

140421461 is a wasteful number, since it uses less digits than its factorization.

140421461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103062.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 140421461 is about 11849.9561602565. The cubic root of 140421461 is about 519.7699438460.

The spelling of 140421461 in words is "one hundred forty million, four hundred twenty-one thousand, four hundred sixty-one".