1045544515541 has 4 divisors (see below), whose sum is σ = 1061149657632. Its totient is φ = 1029939373452.

The previous prime is 1045544515529. The next prime is 1045544515591. The reversal of 1045544515541 is 1455154455401.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-1045544515541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1045544515492 and 1045544515501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045544515591) 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, 7802570945 + ... + 7802571078.

It is an arithmetic number, because the mean of its divisors is an integer number (265287414408).

Almost surely, 2^{1045544515541} is an apocalyptic number.

It is an amenable number.

1045544515541 is a deficient number, since it is larger than the sum of its proper divisors (15605142091).

1045544515541 is an equidigital number, since it uses as much as digits as its factorization.

1045544515541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15605142090.

The product of its (nonzero) digits is 800000, while the sum is 44.

The spelling of 1045544515541 in words is "one trillion, forty-five billion, five hundred forty-four million, five hundred fifteen thousand, five hundred forty-one".