145044915 has 8 divisors (see below), whose sum is σ = 232071888. Its totient is φ = 77357280.

The previous prime is 145044899. The next prime is 145044919. The reversal of 145044915 is 519440541.

145044915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145044915 - 2⁴ = 145044899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145044919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4834816 + ... + 4834845.

It is an arithmetic number, because the mean of its divisors is an integer number (29008986).

Almost surely, 2^145044915 is an apocalyptic number.

145044915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145044915 is a deficient number, since it is larger than the sum of its proper divisors (87026973).

145044915 is an equidigital number, since it uses as much as digits as its factorization.

145044915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9669669.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 145044915 is about 12043.4594282540. The cubic root of 145044915 is about 525.4130264538.

The spelling of 145044915 in words is "one hundred forty-five million, forty-four thousand, nine hundred fifteen".