140502353 has 2 divisors, whose sum is σ = 140502354. Its totient is φ = 140502352.

The previous prime is 140502343. The next prime is 140502379. The reversal of 140502353 is 353205041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73393489 + 67108864 = 8567^2 + 8192^2 .

It is a cyclic number.

It is not a de Polignac number, because 140502353 - 2⁸ = 140502097 is a prime.

It is a super-2 number, since 2×140502353² = 39481822397073218, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140502343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70251176 + 70251177.

It is an arithmetic number, because the mean of its divisors is an integer number (70251177).

Almost surely, 2^140502353 is an apocalyptic number.

It is an amenable number.

140502353 is a deficient number, since it is larger than the sum of its proper divisors (1).

140502353 is an equidigital number, since it uses as much as digits as its factorization.

140502353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 140502353 is about 11853.3688460285. The cubic root of 140502353 is about 519.8697319149.

Adding to 140502353 its reverse (353205041), we get a palindrome (493707394).

The spelling of 140502353 in words is "one hundred forty million, five hundred two thousand, three hundred fifty-three".