140218753 has 2 divisors, whose sum is σ = 140218754. Its totient is φ = 140218752.

The previous prime is 140218733. The next prime is 140218801. The reversal of 140218753 is 357812041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121616784 + 18601969 = 11028^2 + 4313^2 .

It is an emirp because it is prime and its reverse (357812041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140218753 - 2⁹ = 140218241 is a prime.

It is a super-2 number, since 2×140218753² = 39322597385750018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140218733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70109376 + 70109377.

It is an arithmetic number, because the mean of its divisors is an integer number (70109377).

Almost surely, 2^140218753 is an apocalyptic number.

It is an amenable number.

140218753 is a deficient number, since it is larger than the sum of its proper divisors (1).

140218753 is an equidigital number, since it uses as much as digits as its factorization.

140218753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 140218753 is about 11841.3999594643. The cubic root of 140218753 is about 519.5197155580.

The spelling of 140218753 in words is "one hundred forty million, two hundred eighteen thousand, seven hundred fifty-three".