145423033 has 12 divisors (see below), whose sum is σ = 173102160. Its totient is φ = 121747752.

The previous prime is 145423027. The next prime is 145423037. The reversal of 145423033 is 330324541.

It is not a de Polignac number, because 145423033 - 2⁹ = 145422521 is a prime.

It is a super-2 number, since 2×145423033² = 42295717053838178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145422989 and 145423007.

It is not an unprimeable number, because it can be changed into a prime (145423037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32403 + ... + 36616.

It is an arithmetic number, because the mean of its divisors is an integer number (14425180).

Almost surely, 2^145423033 is an apocalyptic number.

It is an amenable number.

145423033 is a deficient number, since it is larger than the sum of its proper divisors (27679127).

145423033 is an equidigital number, since it uses as much as digits as its factorization.

145423033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69076 (or 69069 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 145423033 is about 12059.1472749942. The cubic root of 145423033 is about 525.8691971881.

Adding to 145423033 its reverse (330324541), we get a palindrome (475747574).

The spelling of 145423033 in words is "one hundred forty-five million, four hundred twenty-three thousand, thirty-three".