145820112 has 20 divisors (see below), whose sum is σ = 376702080. Its totient is φ = 48606688.

The previous prime is 145820107. The next prime is 145820113. The reversal of 145820112 is 211028541.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145820113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518912 + ... + 1519007.

It is an arithmetic number, because the mean of its divisors is an integer number (18835104).

Almost surely, 2^145820112 is an apocalyptic number.

145820112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145820112 is an abundant number, since it is smaller than the sum of its proper divisors (230881968).

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

145820112 is a wasteful number, since it uses less digits than its factorization.

145820112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037930 (or 3037924 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 145820112 is about 12075.5998608765. The cubic root of 145820112 is about 526.3473925248.

Adding to 145820112 its reverse (211028541), we get a palindrome (356848653).

The spelling of 145820112 in words is "one hundred forty-five million, eight hundred twenty thousand, one hundred twelve".