1355431540445 has 16 divisors (see below), whose sum is σ = 1722295830528. Its totient is φ = 1020500686080.

The previous prime is 1355431540427. The next prime is 1355431540471. The reversal of 1355431540445 is 5440451345531.

It is not a de Polignac number, because 1355431540445 - 2⁶ = 1355431540381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1355431540396 and 1355431540405.

It is a congruent number.

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, 1028672 + ... + 1941398.

It is an arithmetic number, because the mean of its divisors is an integer number (107643489408).

Almost surely, 2^{1355431540445} is an apocalyptic number.

It is an amenable number.

1355431540445 is a deficient number, since it is larger than the sum of its proper divisors (366864290083).

1355431540445 is a wasteful number, since it uses less digits than its factorization.

1355431540445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930220.

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 1355431540445 its reverse (5440451345531), we get a palindrome (6795882885976).

The spelling of 1355431540445 in words is "one trillion, three hundred fifty-five billion, four hundred thirty-one million, five hundred forty thousand, four hundred forty-five".