145547033 has 2 divisors, whose sum is σ = 145547034. Its totient is φ = 145547032.

The previous prime is 145547029. The next prime is 145547053. The reversal of 145547033 is 330745541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132894784 + 12652249 = 11528^2 + 3557^2 .

It is a cyclic number.

It is not a de Polignac number, because 145547033 - 2² = 145547029 is a prime.

It is not a weakly prime, because it can be changed into another prime (145547053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72773516 + 72773517.

It is an arithmetic number, because the mean of its divisors is an integer number (72773517).

Almost surely, 2^145547033 is an apocalyptic number.

It is an amenable number.

145547033 is a deficient number, since it is larger than the sum of its proper divisors (1).

145547033 is an equidigital number, since it uses as much as digits as its factorization.

145547033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 145547033 is about 12064.2875048633. The cubic root of 145547033 is about 526.0186216041.

The spelling of 145547033 in words is "one hundred forty-five million, five hundred forty-seven thousand, thirty-three".