302140093 has 2 divisors, whose sum is σ = 302140094. Its totient is φ = 302140092.

The previous prime is 302140087. The next prime is 302140123. The reversal of 302140093 is 390041203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283147929 + 18992164 = 16827^2 + 4358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-302140093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302141093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151070046 + 151070047.

It is an arithmetic number, because the mean of its divisors is an integer number (151070047).

Almost surely, 2^302140093 is an apocalyptic number.

It is an amenable number.

302140093 is a deficient number, since it is larger than the sum of its proper divisors (1).

302140093 is an equidigital number, since it uses as much as digits as its factorization.

302140093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 302140093 is about 17382.1774527819. The cubic root of 302140093 is about 671.0210117924.

Adding to 302140093 its reverse (390041203), we get a palindrome (692181296).

The spelling of 302140093 in words is "three hundred two million, one hundred forty thousand, ninety-three".