32145337513 has 4 divisors (see below), whose sum is σ = 32185072980. Its totient is φ = 32105602048.

The previous prime is 32145337507. The next prime is 32145337531. The reversal of 32145337513 is 31573354123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31573354123 = 1607 ⋅19647389.

It can be written as a sum of positive squares in 2 ways, for example, as 27555004009 + 4590333504 = 165997^2 + 67752^2 .

It is a cyclic number.

It is not a de Polignac number, because 32145337513 - 2⁹ = 32145337001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32145337583) 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, 19866520 + ... + 19868137.

It is an arithmetic number, because the mean of its divisors is an integer number (8046268245).

Almost surely, 2^32145337513 is an apocalyptic number.

It is an amenable number.

32145337513 is a deficient number, since it is larger than the sum of its proper divisors (39735467).

32145337513 is an equidigital number, since it uses as much as digits as its factorization.

32145337513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39735466.

The product of its digits is 113400, while the sum is 37.

The spelling of 32145337513 in words is "thirty-two billion, one hundred forty-five million, three hundred thirty-seven thousand, five hundred thirteen".