145245233 has 8 divisors (see below), whose sum is σ = 166071168. Its totient is φ = 124438464.

The previous prime is 145245223. The next prime is 145245251. The reversal of 145245233 is 332542541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145245233 - 2¹⁴ = 145228849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145245196 and 145245205.

It is not an unprimeable number, because it can be changed into a prime (145245223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20060 + ... + 26322.

It is an arithmetic number, because the mean of its divisors is an integer number (20758896).

Almost surely, 2^145245233 is an apocalyptic number.

It is an amenable number.

145245233 is a deficient number, since it is larger than the sum of its proper divisors (20825935).

145245233 is an equidigital number, since it uses as much as digits as its factorization.

145245233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9583.

The product of its digits is 14400, while the sum is 29.

The square root of 145245233 is about 12051.7730230867. The cubic root of 145245233 is about 525.6547935670.

Adding to 145245233 its reverse (332542541), we get a palindrome (477787774).

The spelling of 145245233 in words is "one hundred forty-five million, two hundred forty-five thousand, two hundred thirty-three".