140520032545 has 16 divisors (see below), whose sum is σ = 169149272400. Its totient is φ = 112066412544.

The previous prime is 140520032537. The next prime is 140520032579. The reversal of 140520032545 is 545230025041.

It can be written as a sum of positive squares in 8 ways, for example, as 88119328801 + 52400703744 = 296849^2 + 228912^2 .

It is a cyclic number.

It is not a de Polignac number, because 140520032545 - 2³ = 140520032537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2081481 + ... + 2147929.

It is an arithmetic number, because the mean of its divisors is an integer number (10571829525).

Almost surely, 2^140520032545 is an apocalyptic number.

It is an amenable number.

140520032545 is a deficient number, since it is larger than the sum of its proper divisors (28629239855).

140520032545 is an equidigital number, since it uses as much as digits as its factorization.

140520032545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67764.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 140520032545 its reverse (545230025041), we get a palindrome (685750057586).

The spelling of 140520032545 in words is "one hundred forty billion, five hundred twenty million, thirty-two thousand, five hundred forty-five".