140532401321 has 8 divisors (see below), whose sum is σ = 151354004424. Its totient is φ = 129712429440.

The previous prime is 140532401279. The next prime is 140532401323. The reversal of 140532401321 is 123104235041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8426322025 + 132106079296 = 91795^2 + 363464^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140532401321 - 2³⁴ = 123352532137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140532401323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225860 + ... + 576261.

It is an arithmetic number, because the mean of its divisors is an integer number (18919250553).

Almost surely, 2^140532401321 is an apocalyptic number.

It is an amenable number.

140532401321 is a deficient number, since it is larger than the sum of its proper divisors (10821603103).

140532401321 is a wasteful number, since it uses less digits than its factorization.

140532401321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815611.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 140532401321 its reverse (123104235041), we get a palindrome (263636636362).

The spelling of 140532401321 in words is "one hundred forty billion, five hundred thirty-two million, four hundred one thousand, three hundred twenty-one".