145550573 has 4 divisors (see below), whose sum is σ = 166343520. Its totient is φ = 124757628.

The previous prime is 145550557. The next prime is 145550597. The reversal of 145550573 is 375055541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145550573 - 2⁴ = 145550557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145550173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10396463 + ... + 10396476.

It is an arithmetic number, because the mean of its divisors is an integer number (41585880).

Almost surely, 2^145550573 is an apocalyptic number.

It is an amenable number.

145550573 is a deficient number, since it is larger than the sum of its proper divisors (20792947).

145550573 is an equidigital number, since it uses as much as digits as its factorization.

145550573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20792946.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 145550573 is about 12064.4342179814. The cubic root of 145550573 is about 526.0228861839.

The spelling of 145550573 in words is "one hundred forty-five million, five hundred fifty thousand, five hundred seventy-three".