145544311422 has 12 divisors (see below), whose sum is σ = 315346008120. Its totient is φ = 48514770468.

The previous prime is 145544311421. The next prime is 145544311427. The reversal of 145544311422 is 224113445541.

145544311422 is a `hidden beast` number, since 1 + 45 + 544 + 31 + 1 + 42 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145544311421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4042897522 + ... + 4042897557.

It is an arithmetic number, because the mean of its divisors is an integer number (26278834010).

Almost surely, 2^145544311422 is an apocalyptic number.

145544311422 is an abundant number, since it is smaller than the sum of its proper divisors (169801696698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145544311422 is a wasteful number, since it uses less digits than its factorization.

145544311422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8085795087 (or 8085795084 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 145544311422 its reverse (224113445541), we get a palindrome (369657756963).

The spelling of 145544311422 in words is "one hundred forty-five billion, five hundred forty-four million, three hundred eleven thousand, four hundred twenty-two".