145188112 has 20 divisors (see below), whose sum is σ = 281858076. Its totient is φ = 72450560.

The previous prime is 145188091. The next prime is 145188137. The reversal of 145188112 is 211881541.

It can be written as a sum of positive squares in 2 ways, for example, as 95570176 + 49617936 = 9776^2 + 7044^2 .

It is a super-2 number, since 2×145188112² = 42159175732249088, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373 + ... + 17044.

Almost surely, 2^145188112 is an apocalyptic number.

It is an amenable number.

145188112 is a deficient number, since it is larger than the sum of its proper divisors (136669964).

145188112 is a wasteful number, since it uses less digits than its factorization.

145188112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17946 (or 17940 counting only the distinct ones).

The product of its digits is 2560, while the sum is 31.

The square root of 145188112 is about 12049.4029727618. The cubic root of 145188112 is about 525.5858759536.

The spelling of 145188112 in words is "one hundred forty-five million, one hundred eighty-eight thousand, one hundred twelve".