1232555135445 has 24 divisors (see below), whose sum is σ = 2229317116416. Its totient is φ = 628781749728.

The previous prime is 1232555135377. The next prime is 1232555135447. The reversal of 1232555135445 is 5445315552321.

1232555135445 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 5 + 551 + 3 + 54 + 45 = 666.

It is not a de Polignac number, because 1232555135445 - 2²⁴ = 1232538358229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1232555135445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232555135447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 595436229 + ... + 595438298.

It is an arithmetic number, because the mean of its divisors is an integer number (92888213184).

Almost surely, 2^{1232555135445} is an apocalyptic number.

1232555135445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1232555135445 is a deficient number, since it is larger than the sum of its proper divisors (996761980971).

1232555135445 is a wasteful number, since it uses less digits than its factorization.

1232555135445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190874561 (or 1190874558 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 45.

The spelling of 1232555135445 in words is "one trillion, two hundred thirty-two billion, five hundred fifty-five million, one hundred thirty-five thousand, four hundred forty-five".