145304303 has 8 divisors (see below), whose sum is σ = 147140400. Its totient is φ = 143477568.

The previous prime is 145304293. The next prime is 145304311. The reversal of 145304303 is 303403541.

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 145304303 - 2¹⁸ = 145042159 is a prime.

It is a super-2 number, since 2×145304303² = 42226680940631618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145304903) 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, 31988 + ... + 36246.

It is an arithmetic number, because the mean of its divisors is an integer number (18392550).

Almost surely, 2^145304303 is an apocalyptic number.

145304303 is a deficient number, since it is larger than the sum of its proper divisors (1836097).

145304303 is a wasteful number, since it uses less digits than its factorization.

145304303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4681.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 145304303 is about 12054.2234507246. The cubic root of 145304303 is about 525.7260436858.

Adding to 145304303 its reverse (303403541), we get a palindrome (448707844).

The spelling of 145304303 in words is "one hundred forty-five million, three hundred four thousand, three hundred three".