140961013 has 4 divisors (see below), whose sum is σ = 141244000. Its totient is φ = 140678028.

The previous prime is 140961011. The next prime is 140961017. The reversal of 140961013 is 310169041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140961013 - 2¹ = 140961011 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 (140961011) 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, 140745 + ... + 141742.

It is an arithmetic number, because the mean of its divisors is an integer number (35311000).

Almost surely, 2^140961013 is an apocalyptic number.

It is an amenable number.

140961013 is a deficient number, since it is larger than the sum of its proper divisors (282987).

140961013 is an equidigital number, since it uses as much as digits as its factorization.

140961013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282986.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 140961013 is about 11872.7003246945. The cubic root of 140961013 is about 520.4348101386.

The spelling of 140961013 in words is "one hundred forty million, nine hundred sixty-one thousand, thirteen".