140247141 has 4 divisors (see below), whose sum is σ = 186996192. Its totient is φ = 93498092.

The previous prime is 140247097. The next prime is 140247167. The reversal of 140247141 is 141742041.

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 140247141 - 2⁹ = 140246629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140247181) 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, 23374521 + ... + 23374526.

It is an arithmetic number, because the mean of its divisors is an integer number (46749048).

Almost surely, 2^140247141 is an apocalyptic number.

It is an amenable number.

140247141 is a deficient number, since it is larger than the sum of its proper divisors (46749051).

140247141 is an equidigital number, since it uses as much as digits as its factorization.

140247141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46749050.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 140247141 is about 11842.5985746372. The cubic root of 140247141 is about 519.5547729956.

Adding to 140247141 its reverse (141742041), we get a palindrome (281989182).

The spelling of 140247141 in words is "one hundred forty million, two hundred forty-seven thousand, one hundred forty-one".