145044801 has 24 divisors (see below), whose sum is σ = 228964320. Its totient is φ = 87748800.

The previous prime is 145044793. The next prime is 145044857. The reversal of 145044801 is 108440541.

It is a happy number.

It is not a de Polignac number, because 145044801 - 2³ = 145044793 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145044871) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 79186 + ... + 80996.

It is an arithmetic number, because the mean of its divisors is an integer number (9540180).

Almost surely, 2^145044801 is an apocalyptic number.

145044801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145044801 is a deficient number, since it is larger than the sum of its proper divisors (83919519).

145044801 is a wasteful number, since it uses less digits than its factorization.

145044801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637 (or 2634 counting only the distinct ones).

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

The square root of 145044801 is about 12043.4546953937. The cubic root of 145044801 is about 525.4128888019.

The spelling of 145044801 in words is "one hundred forty-five million, forty-four thousand, eight hundred one".