145003214 has 4 divisors (see below), whose sum is σ = 217504824. Its totient is φ = 72501606.

The previous prime is 145003207. The next prime is 145003249. The reversal of 145003214 is 412300541.

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, 36250802 + ... + 36250805.

It is an arithmetic number, because the mean of its divisors is an integer number (54376206).

Almost surely, 2^145003214 is an apocalyptic number.

145003214 is a deficient number, since it is larger than the sum of its proper divisors (72501610).

145003214 is an equidigital number, since it uses as much as digits as its factorization.

145003214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72501609.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 145003214 is about 12041.7280321389. The cubic root of 145003214 is about 525.3626688370.

Adding to 145003214 its reverse (412300541), we get a palindrome (557303755).

The spelling of 145003214 in words is "one hundred forty-five million, three thousand, two hundred fourteen".