145222023132 has 18 divisors (see below), whose sum is σ = 367089003008. Its totient is φ = 48407341032.

The previous prime is 145222023131. The next prime is 145222023139. The reversal of 145222023132 is 231320222541.

145222023132 is a `hidden beast` number, since 1 + 4 + 522 + 2 + 0 + 2 + 3 + 132 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×145222023132² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145222023096 and 145222023105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145222023131) 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, 2016972508 + ... + 2016972579.

Almost surely, 2^145222023132 is an apocalyptic number.

145222023132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145222023132 is an abundant number, since it is smaller than the sum of its proper divisors (221866979876).

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

145222023132 is a wasteful number, since it uses less digits than its factorization.

145222023132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033945097 (or 4033945092 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 145222023132 its reverse (231320222541), we get a palindrome (376542245673).

The spelling of 145222023132 in words is "one hundred forty-five billion, two hundred twenty-two million, twenty-three thousand, one hundred thirty-two".