145333445 has 8 divisors (see below), whose sum is σ = 176127480. Its totient is φ = 115115200.

The previous prime is 145333399. The next prime is 145333469. The reversal of 145333445 is 544333541.

It can be written as a sum of positive squares in 4 ways, for example, as 82337476 + 62995969 = 9074^2 + 7937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145333445 - 2⁶ = 145333381 is a prime.

It is a super-2 number, since 2×145333445² = 42243620471136050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143390 + ... + 144399.

It is an arithmetic number, because the mean of its divisors is an integer number (22015935).

Almost surely, 2^145333445 is an apocalyptic number.

It is an amenable number.

145333445 is a deficient number, since it is larger than the sum of its proper divisors (30794035).

145333445 is a wasteful number, since it uses less digits than its factorization.

145333445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287895.

The product of its digits is 43200, while the sum is 32.

The square root of 145333445 is about 12055.4321780681. The cubic root of 145333445 is about 525.7611875962.

Adding to 145333445 its reverse (544333541), we get a palindrome (689666986).

The spelling of 145333445 in words is "one hundred forty-five million, three hundred thirty-three thousand, four hundred forty-five".