145320033 has 16 divisors (see below), whose sum is σ = 200332800. Its totient is φ = 93603840.

The previous prime is 145320023. The next prime is 145320041. The reversal of 145320033 is 330023541.

It is not a de Polignac number, because 145320033 - 2⁹ = 145319521 is a prime.

It is a super-2 number, since 2×145320033² = 42235823982242178, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145319991 and 145320009.

It is not an unprimeable number, because it can be changed into a prime (145320023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102433 + ... + 103841.

It is an arithmetic number, because the mean of its divisors is an integer number (12520800).

Almost surely, 2^145320033 is an apocalyptic number.

It is an amenable number.

145320033 is a deficient number, since it is larger than the sum of its proper divisors (55012767).

145320033 is a wasteful number, since it uses less digits than its factorization.

145320033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 145320033 is about 12054.8759014765. The cubic root of 145320033 is about 525.7450139252.

Adding to 145320033 its reverse (330023541), we get a palindrome (475343574).

The spelling of 145320033 in words is "one hundred forty-five million, three hundred twenty thousand, thirty-three".