140968739 has 4 divisors (see below), whose sum is σ = 145829760. Its totient is φ = 136107720.

The previous prime is 140968727. The next prime is 140968741. The reversal of 140968739 is 937869041.

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 140968739 - 2²⁰ = 139920163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140968693 and 140968702.

It is not an unprimeable number, because it can be changed into a prime (140968769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2430467 + ... + 2430524.

It is an arithmetic number, because the mean of its divisors is an integer number (36457440).

Almost surely, 2^140968739 is an apocalyptic number.

140968739 is a deficient number, since it is larger than the sum of its proper divisors (4861021).

140968739 is an equidigital number, since it uses as much as digits as its factorization.

140968739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861020.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 140968739 is about 11873.0256885092. The cubic root of 140968739 is about 520.4443182189. Note that the first 3 decimals are identical.

The spelling of 140968739 in words is "one hundred forty million, nine hundred sixty-eight thousand, seven hundred thirty-nine".