140237393 has 2 divisors, whose sum is σ = 140237394. Its totient is φ = 140237392.

The previous prime is 140237291. The next prime is 140237411. The reversal of 140237393 is 393732041.

140237393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109579024 + 30658369 = 10468^2 + 5537^2 .

It is a cyclic number.

It is not a de Polignac number, because 140237393 - 2¹² = 140233297 is a prime.

It is not a weakly prime, because it can be changed into another prime (140237093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70118696 + 70118697.

It is an arithmetic number, because the mean of its divisors is an integer number (70118697).

Almost surely, 2^140237393 is an apocalyptic number.

It is an amenable number.

140237393 is a deficient number, since it is larger than the sum of its proper divisors (1).

140237393 is an equidigital number, since it uses as much as digits as its factorization.

140237393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 140237393 is about 11842.1870024080. The cubic root of 140237393 is about 519.5427353473.

The spelling of 140237393 in words is "one hundred forty million, two hundred thirty-seven thousand, three hundred ninety-three".