140310293 has 2 divisors, whose sum is σ = 140310294. Its totient is φ = 140310292.

The previous prime is 140310283. The next prime is 140310329. The reversal of 140310293 is 392013041.

Together with next prime (140310329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100140049 + 40170244 = 10007^2 + 6338^2 .

It is a cyclic number.

It is not a de Polignac number, because 140310293 - 2⁶ = 140310229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140310263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70155146 + 70155147.

It is an arithmetic number, because the mean of its divisors is an integer number (70155147).

Almost surely, 2^140310293 is an apocalyptic number.

It is an amenable number.

140310293 is a deficient number, since it is larger than the sum of its proper divisors (1).

140310293 is an equidigital number, since it uses as much as digits as its factorization.

140310293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 140310293 is about 11845.2645812578. The cubic root of 140310293 is about 519.6327448748.

The spelling of 140310293 in words is "one hundred forty million, three hundred ten thousand, two hundred ninety-three".