145204033 has 4 divisors (see below), whose sum is σ = 156373588. Its totient is φ = 134034480.

The previous prime is 145204027. The next prime is 145204049. The reversal of 145204033 is 330402541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19607184 + 125596849 = 4428^2 + 11207^2 .

It is a cyclic number.

It is not a de Polignac number, because 145204033 - 2⁹ = 145203521 is a prime.

It is a super-2 number, since 2×145204033² = 42168422398930178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145203995 and 145204013.

It is not an unprimeable number, because it can be changed into a prime (145204733) 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, 5584758 + ... + 5584783.

It is an arithmetic number, because the mean of its divisors is an integer number (39093397).

Almost surely, 2^145204033 is an apocalyptic number.

145204033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145204033 is a deficient number, since it is larger than the sum of its proper divisors (11169555).

145204033 is a wasteful number, since it uses less digits than its factorization.

145204033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11169554.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 145204033 is about 12050.0636097906. The cubic root of 145204033 is about 525.6050867709.

Adding to 145204033 its reverse (330402541), we get a palindrome (475606574).

The spelling of 145204033 in words is "one hundred forty-five million, two hundred four thousand, thirty-three".