140745453 has 4 divisors (see below), whose sum is σ = 187660608. Its totient is φ = 93830300.

The previous prime is 140745433. The next prime is 140745467. The reversal of 140745453 is 354547041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354547041 = 3 ⋅118182347.

It is a cyclic number.

It is not a de Polignac number, because 140745453 - 2⁵ = 140745421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140745403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23457573 + ... + 23457578.

It is an arithmetic number, because the mean of its divisors is an integer number (46915152).

Almost surely, 2^140745453 is an apocalyptic number.

It is an amenable number.

140745453 is a deficient number, since it is larger than the sum of its proper divisors (46915155).

140745453 is an equidigital number, since it uses as much as digits as its factorization.

140745453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46915154.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 140745453 is about 11863.6188829547. The cubic root of 140745453 is about 520.1693888495.

The spelling of 140745453 in words is "one hundred forty million, seven hundred forty-five thousand, four hundred fifty-three".