145564015 has 8 divisors (see below), whose sum is σ = 174749328. Its totient is φ = 116402880.

The previous prime is 145564009. The next prime is 145564037. The reversal of 145564015 is 510465541.

145564015 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 145564015 - 2¹⁵ = 145531247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12235 + ... + 20995.

It is an arithmetic number, because the mean of its divisors is an integer number (21843666).

Almost surely, 2^145564015 is an apocalyptic number.

145564015 is a deficient number, since it is larger than the sum of its proper divisors (29185313).

145564015 is an equidigital number, since it uses as much as digits as its factorization.

145564015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12089.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 145564015 is about 12064.9912971374. The cubic root of 145564015 is about 526.0390789107.

The spelling of 145564015 in words is "one hundred forty-five million, five hundred sixty-four thousand, fifteen".