1345631033641 has 4 divisors (see below), whose sum is σ = 1358954113284. Its totient is φ = 1332307954000.

The previous prime is 1345631033629. The next prime is 1345631033647. The reversal of 1345631033641 is 1463301365431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1306494720400 + 39136313241 = 1143020^2 + 197829^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345631033641 - 2⁹ = 1345631033129 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345631033594 and 1345631033603.

It is not an unprimeable number, because it can be changed into a prime (1345631033647) 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, 6661539670 + ... + 6661539871.

It is an arithmetic number, because the mean of its divisors is an integer number (339738528321).

Almost surely, 2^{1345631033641} is an apocalyptic number.

It is an amenable number.

1345631033641 is a deficient number, since it is larger than the sum of its proper divisors (13323079643).

1345631033641 is a wasteful number, since it uses less digits than its factorization.

1345631033641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13323079642.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 1345631033641 in words is "one trillion, three hundred forty-five billion, six hundred thirty-one million, thirty-three thousand, six hundred forty-one".