145022533 has 4 divisors (see below), whose sum is σ = 150023340. Its totient is φ = 140021728.

The previous prime is 145022513. The next prime is 145022543. The reversal of 145022533 is 335220541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335220541 = 29 ⋅11559329.

It can be written as a sum of positive squares in 2 ways, for example, as 77404804 + 67617729 = 8798^2 + 8223^2 .

It is a cyclic number.

It is not a de Polignac number, because 145022533 - 2⁹ = 145022021 is a prime.

It is a Duffinian number.

145022533 is a modest number, since divided by 22533 gives 145 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 145022498 and 145022507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145022503) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2500360 + ... + 2500417.

It is an arithmetic number, because the mean of its divisors is an integer number (37505835).

Almost surely, 2^145022533 is an apocalyptic number.

It is an amenable number.

145022533 is a deficient number, since it is larger than the sum of its proper divisors (5000807).

145022533 is an equidigital number, since it uses as much as digits as its factorization.

145022533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000806.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 145022533 is about 12042.5301743446. The cubic root of 145022533 is about 525.3859994249.

The spelling of 145022533 in words is "one hundred forty-five million, twenty-two thousand, five hundred thirty-three".