145564073 has 8 divisors (see below), whose sum is σ = 156789600. Its totient is φ = 134695008.

The previous prime is 145564043. The next prime is 145564091. The reversal of 145564073 is 370465541.

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

It is a cyclic number.

It is not a de Polignac number, because 145564073 - 2⁶ = 145564009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145564043) 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, 88268 + ... + 89901.

It is an arithmetic number, because the mean of its divisors is an integer number (19598700).

Almost surely, 2^145564073 is an apocalyptic number.

It is an amenable number.

145564073 is a deficient number, since it is larger than the sum of its proper divisors (11225527).

145564073 is a wasteful number, since it uses less digits than its factorization.

145564073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178231.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 145564073 is about 12064.9937007858. The cubic root of 145564073 is about 526.0391487775.

The spelling of 145564073 in words is "one hundred forty-five million, five hundred sixty-four thousand, seventy-three".