140999993 has 2 divisors, whose sum is σ = 140999994. Its totient is φ = 140999992.

The previous prime is 140999983. The next prime is 141000019. The reversal of 140999993 is 399999041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86638864 + 54361129 = 9308^2 + 7373^2 .

It is a cyclic number.

It is not a de Polignac number, because 140999993 - 2²⁰ = 139951417 is a prime.

It is not a weakly prime, because it can be changed into another prime (140999923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70499996 + 70499997.

It is an arithmetic number, because the mean of its divisors is an integer number (70499997).

Almost surely, 2^140999993 is an apocalyptic number.

It is an amenable number.

140999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

140999993 is an equidigital number, since it uses as much as digits as its factorization.

140999993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 708588, while the sum is 53.

The square root of 140999993 is about 11874.3417922847. The cubic root of 140999993 is about 520.4827777262.

The spelling of 140999993 in words is "one hundred forty million, nine hundred ninety-nine thousand, nine hundred ninety-three".