145120824 has 24 divisors (see below), whose sum is σ = 393035760. Its totient is φ = 48373584.

The previous prime is 145120817. The next prime is 145120897. The reversal of 145120824 is 428021541.

145120824 is a `hidden beast` number, since 1 + 451 + 208 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 1007712 + ... + 1007855.

It is an arithmetic number, because the mean of its divisors is an integer number (16376490).

Almost surely, 2^145120824 is an apocalyptic number.

It is an amenable number.

145120824 is an abundant number, since it is smaller than the sum of its proper divisors (247914936).

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

145120824 is a wasteful number, since it uses less digits than its factorization.

145120824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015579 (or 2015572 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 145120824 is about 12046.6104776406. The cubic root of 145120824 is about 525.5046684618.

The spelling of 145120824 in words is "one hundred forty-five million, one hundred twenty thousand, eight hundred twenty-four".