145120056 has 16 divisors (see below), whose sum is σ = 362800200. Its totient is φ = 48373344.

The previous prime is 145120049. The next prime is 145120091. The reversal of 145120056 is 650021541.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 6046669 = 145120056 / (1 + 4 + 5 + 1 + 2 + 0 + 0 + 5 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3023311 + ... + 3023358.

Almost surely, 2^145120056 is an apocalyptic number.

It is an amenable number.

145120056 is an abundant number, since it is smaller than the sum of its proper divisors (217680144).

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

145120056 is a wasteful number, since it uses less digits than its factorization.

145120056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6046678 (or 6046674 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 145120056 is about 12046.5786014121. The cubic root of 145120056 is about 525.5037414450.

Adding to 145120056 its reverse (650021541), we get a palindrome (795141597).

The spelling of 145120056 in words is "one hundred forty-five million, one hundred twenty thousand, fifty-six".