140888453 has 2 divisors, whose sum is σ = 140888454. Its totient is φ = 140888452.

The previous prime is 140888443. The next prime is 140888483. The reversal of 140888453 is 354888041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137194369 + 3694084 = 11713^2 + 1922^2 .

It is an emirp because it is prime and its reverse (354888041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140888453 - 2¹⁰ = 140887429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140888453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140888413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70444226 + 70444227.

It is an arithmetic number, because the mean of its divisors is an integer number (70444227).

Almost surely, 2^140888453 is an apocalyptic number.

It is an amenable number.

140888453 is a deficient number, since it is larger than the sum of its proper divisors (1).

140888453 is an equidigital number, since it uses as much as digits as its factorization.

140888453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 140888453 is about 11869.6441816931. The cubic root of 140888453 is about 520.3454964805.

The spelling of 140888453 in words is "one hundred forty million, eight hundred eighty-eight thousand, four hundred fifty-three".