13122155445 has 32 divisors (see below), whose sum is σ = 24005818368. Its totient is φ = 5995944768.

The previous prime is 13122155437. The next prime is 13122155491. The reversal of 13122155445 is 54455122131.

It is not a de Polignac number, because 13122155445 - 2³ = 13122155437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210472 + ... + 265598.

It is an arithmetic number, because the mean of its divisors is an integer number (750181824).

Almost surely, 2^13122155445 is an apocalyptic number.

13122155445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13122155445 is a deficient number, since it is larger than the sum of its proper divisors (10883662923).

13122155445 is a wasteful number, since it uses less digits than its factorization.

13122155445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57409.

The product of its digits is 24000, while the sum is 33.

Adding to 13122155445 its reverse (54455122131), we get a palindrome (67577277576).

The spelling of 13122155445 in words is "thirteen billion, one hundred twenty-two million, one hundred fifty-five thousand, four hundred forty-five".