145730146 has 8 divisors (see below), whose sum is σ = 218646720. Its totient is φ = 72847908.

The previous prime is 145730131. The next prime is 145730197. The reversal of 145730146 is 641037541.

145730146 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10635 + ... + 20113.

It is an arithmetic number, because the mean of its divisors is an integer number (27330840).

Almost surely, 2^145730146 is an apocalyptic number.

145730146 is a deficient number, since it is larger than the sum of its proper divisors (72916574).

145730146 is an equidigital number, since it uses as much as digits as its factorization.

145730146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17168.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 145730146 is about 12071.8741709811. The cubic root of 145730146 is about 526.2391241690.

Adding to 145730146 its reverse (641037541), we get a palindrome (786767687).

The spelling of 145730146 in words is "one hundred forty-five million, seven hundred thirty thousand, one hundred forty-six".