140500553 has 2 divisors, whose sum is σ = 140500554. Its totient is φ = 140500552.

The previous prime is 140500519. The next prime is 140500559. The reversal of 140500553 is 355005041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116812864 + 23687689 = 10808^2 + 4867^2 .

It is a cyclic number.

It is not a de Polignac number, because 140500553 - 2²² = 136306249 is a prime.

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 (140500559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70250276 + 70250277.

It is an arithmetic number, because the mean of its divisors is an integer number (70250277).

Almost surely, 2^140500553 is an apocalyptic number.

It is an amenable number.

140500553 is a deficient number, since it is larger than the sum of its proper divisors (1).

140500553 is an equidigital number, since it uses as much as digits as its factorization.

140500553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 140500553 is about 11853.2929180038. The cubic root of 140500553 is about 519.8675118583.

Adding to 140500553 its reverse (355005041), we get a palindrome (495505594).

The spelling of 140500553 in words is "one hundred forty million, five hundred thousand, five hundred fifty-three".