145530206 has 4 divisors (see below), whose sum is σ = 218295312. Its totient is φ = 72765102.

The previous prime is 145530179. The next prime is 145530211. The reversal of 145530206 is 602035541.

145530206 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36382550 + ... + 36382553.

It is an arithmetic number, because the mean of its divisors is an integer number (54573828).

Almost surely, 2^145530206 is an apocalyptic number.

145530206 is a deficient number, since it is larger than the sum of its proper divisors (72765106).

145530206 is an equidigital number, since it uses as much as digits as its factorization.

145530206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72765105.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 145530206 is about 12063.5900958214. The cubic root of 145530206 is about 525.9983494481.

Adding to 145530206 its reverse (602035541), we get a palindrome (747565747).

The spelling of 145530206 in words is "one hundred forty-five million, five hundred thirty thousand, two hundred six".