140291933 has 2 divisors, whose sum is σ = 140291934. Its totient is φ = 140291932.

The previous prime is 140291917. The next prime is 140291951. The reversal of 140291933 is 339192041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86899684 + 53392249 = 9322^2 + 7307^2 .

It is a cyclic number.

It is not a de Polignac number, because 140291933 - 2⁴ = 140291917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140291933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140491933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70145966 + 70145967.

It is an arithmetic number, because the mean of its divisors is an integer number (70145967).

Almost surely, 2^140291933 is an apocalyptic number.

It is an amenable number.

140291933 is a deficient number, since it is larger than the sum of its proper divisors (1).

140291933 is an equidigital number, since it uses as much as digits as its factorization.

140291933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 140291933 is about 11844.4895626616. The cubic root of 140291933 is about 519.6100787464.

The spelling of 140291933 in words is "one hundred forty million, two hundred ninety-one thousand, nine hundred thirty-three".