140352761 has 2 divisors, whose sum is σ = 140352762. Its totient is φ = 140352760.

The previous prime is 140352757. The next prime is 140352781. The reversal of 140352761 is 167253041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87703225 + 52649536 = 9365^2 + 7256^2 .

It is an emirp because it is prime and its reverse (167253041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140352761 - 2² = 140352757 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140352781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70176380 + 70176381.

It is an arithmetic number, because the mean of its divisors is an integer number (70176381).

Almost surely, 2^140352761 is an apocalyptic number.

It is an amenable number.

140352761 is a deficient number, since it is larger than the sum of its proper divisors (1).

140352761 is an equidigital number, since it uses as much as digits as its factorization.

140352761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 140352761 is about 11847.0570607219. The cubic root of 140352761 is about 519.6851656842.

The spelling of 140352761 in words is "one hundred forty million, three hundred fifty-two thousand, seven hundred sixty-one".