140245507 has 2 divisors, whose sum is σ = 140245508. Its totient is φ = 140245506.

The previous prime is 140245499. The next prime is 140245549. The reversal of 140245507 is 705542041.

140245507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140245507 - 2³ = 140245499 is a prime.

It is not a weakly prime, because it can be changed into another prime (140246507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70122753 + 70122754.

It is an arithmetic number, because the mean of its divisors is an integer number (70122754).

Almost surely, 2^140245507 is an apocalyptic number.

140245507 is a deficient number, since it is larger than the sum of its proper divisors (1).

140245507 is an equidigital number, since it uses as much as digits as its factorization.

140245507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 140245507 is about 11842.5295861991. The cubic root of 140245507 is about 519.5527552342.

Adding to 140245507 its reverse (705542041), we get a palindrome (845787548).

The spelling of 140245507 in words is "one hundred forty million, two hundred forty-five thousand, five hundred seven".