140291882761 has 4 divisors (see below), whose sum is σ = 140904511300. Its totient is φ = 139679254224.

The previous prime is 140291882707. The next prime is 140291882813. The reversal of 140291882761 is 167288192041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 167288192041 = 457 ⋅366057313.

It can be written as a sum of positive squares in 2 ways, for example, as 111719051536 + 28572831225 = 334244^2 + 169035^2 .

It is a cyclic number.

It is not a de Polignac number, because 140291882761 - 2²⁷ = 140157665033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140291882261) 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, 306313926 + ... + 306314383.

It is an arithmetic number, because the mean of its divisors is an integer number (35226127825).

Almost surely, 2^140291882761 is an apocalyptic number.

It is an amenable number.

140291882761 is a deficient number, since it is larger than the sum of its proper divisors (612628539).

140291882761 is an equidigital number, since it uses as much as digits as its factorization.

140291882761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612628538.

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 140291882761 in words is "one hundred forty billion, two hundred ninety-one million, eight hundred eighty-two thousand, seven hundred sixty-one".