140146507 has 2 divisors, whose sum is σ = 140146508. Its totient is φ = 140146506.

The previous prime is 140146499. The next prime is 140146511. The reversal of 140146507 is 705641041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140146507 - 2³ = 140146499 is a prime.

It is a super-3 number, since 3×140146507³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140146537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70073253 + 70073254.

It is an arithmetic number, because the mean of its divisors is an integer number (70073254).

Almost surely, 2^140146507 is an apocalyptic number.

140146507 is a deficient number, since it is larger than the sum of its proper divisors (1).

140146507 is an equidigital number, since it uses as much as digits as its factorization.

140146507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 140146507 is about 11838.3489980656. The cubic root of 140146507 is about 519.4304748334.

Adding to 140146507 its reverse (705641041), we get a palindrome (845787548).

The spelling of 140146507 in words is "one hundred forty million, one hundred forty-six thousand, five hundred seven".