140218007 has 2 divisors, whose sum is σ = 140218008. Its totient is φ = 140218006.

The previous prime is 140217977. The next prime is 140218009. The reversal of 140218007 is 700812041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140218007 - 2⁶ = 140217943 is a prime.

It is a super-2 number, since 2×140218007² = 39322178974104098, which contains 22 as substring.

Together with 140218009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140218009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70109003 + 70109004.

It is an arithmetic number, because the mean of its divisors is an integer number (70109004).

Almost surely, 2^140218007 is an apocalyptic number.

140218007 is a deficient number, since it is larger than the sum of its proper divisors (1).

140218007 is an equidigital number, since it uses as much as digits as its factorization.

140218007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 140218007 is about 11841.3684597685. The cubic root of 140218007 is about 519.5187942300.

The spelling of 140218007 in words is "one hundred forty million, two hundred eighteen thousand, seven".