145333133 has 4 divisors (see below), whose sum is σ = 158545248. Its totient is φ = 132121020.

The previous prime is 145333093. The next prime is 145333141. The reversal of 145333133 is 331333541.

145333133 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145333133 - 2²⁰ = 144284557 is a prime.

It is a super-2 number, since 2×145333133² = 42243439095191378, 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 (145333183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6606041 + ... + 6606062.

It is an arithmetic number, because the mean of its divisors is an integer number (39636312).

Almost surely, 2^145333133 is an apocalyptic number.

It is an amenable number.

145333133 is a deficient number, since it is larger than the sum of its proper divisors (13212115).

145333133 is a wasteful number, since it uses less digits than its factorization.

145333133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212114.

The product of its digits is 4860, while the sum is 26.

The square root of 145333133 is about 12055.4192378366. The cubic root of 145333133 is about 525.7608113635.

Adding to 145333133 its reverse (331333541), we get a palindrome (476666674).

The spelling of 145333133 in words is "one hundred forty-five million, three hundred thirty-three thousand, one hundred thirty-three".