140661032249 has 2 divisors, whose sum is σ = 140661032250. Its totient is φ = 140661032248.

The previous prime is 140661032233. The next prime is 140661032251. The reversal of 140661032249 is 942230166041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108501066025 + 32159966224 = 329395^2 + 179332^2 .

It is a cyclic number.

It is not a de Polignac number, because 140661032249 - 2⁴ = 140661032233 is a prime.

Together with 140661032251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140661032279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70330516124 + 70330516125.

It is an arithmetic number, because the mean of its divisors is an integer number (70330516125).

Almost surely, 2^140661032249 is an apocalyptic number.

It is an amenable number.

140661032249 is a deficient number, since it is larger than the sum of its proper divisors (1).

140661032249 is an equidigital number, since it uses as much as digits as its factorization.

140661032249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 140661032249 in words is "one hundred forty billion, six hundred sixty-one million, thirty-two thousand, two hundred forty-nine".