140321573 has 4 divisors (see below), whose sum is σ = 160367520. Its totient is φ = 120275628.

The previous prime is 140321563. The next prime is 140321591. The reversal of 140321573 is 375123041.

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.

It is a cyclic number.

It is not a de Polignac number, because 140321573 - 2¹² = 140317477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321563) 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, 10022963 + ... + 10022976.

It is an arithmetic number, because the mean of its divisors is an integer number (40091880).

Almost surely, 2^140321573 is an apocalyptic number.

It is an amenable number.

140321573 is a deficient number, since it is larger than the sum of its proper divisors (20045947).

140321573 is an equidigital number, since it uses as much as digits as its factorization.

140321573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20045946.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 140321573 is about 11845.7407113274. The cubic root of 140321573 is about 519.6466694895.

The spelling of 140321573 in words is "one hundred forty million, three hundred twenty-one thousand, five hundred seventy-three".