140030993 has 2 divisors, whose sum is σ = 140030994. Its totient is φ = 140030992.

The previous prime is 140030987. The next prime is 140031019. The reversal of 140030993 is 399030041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76860289 + 63170704 = 8767^2 + 7948^2 .

It is a cyclic number.

It is not a de Polignac number, because 140030993 - 2¹² = 140026897 is a prime.

It is not a weakly prime, because it can be changed into another prime (140030983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70015496 + 70015497.

It is an arithmetic number, because the mean of its divisors is an integer number (70015497).

Almost surely, 2^140030993 is an apocalyptic number.

It is an amenable number.

140030993 is a deficient number, since it is larger than the sum of its proper divisors (1).

140030993 is an equidigital number, since it uses as much as digits as its factorization.

140030993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 140030993 is about 11833.4691870136. The cubic root of 140030993 is about 519.2877242555.

The spelling of 140030993 in words is "one hundred forty million, thirty thousand, nine hundred ninety-three".