154540033 has 2 divisors, whose sum is σ = 154540034. Its totient is φ = 154540032.

The previous prime is 154539961. The next prime is 154540039. The reversal of 154540033 is 330045451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145371249 + 9168784 = 12057^2 + 3028^2 .

It is an emirp because it is prime and its reverse (330045451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154540033 - 2¹³ = 154531841 is a prime.

It is not a weakly prime, because it can be changed into another prime (154540039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77270016 + 77270017.

It is an arithmetic number, because the mean of its divisors is an integer number (77270017).

Almost surely, 2^154540033 is an apocalyptic number.

It is an amenable number.

154540033 is a deficient number, since it is larger than the sum of its proper divisors (1).

154540033 is an equidigital number, since it uses as much as digits as its factorization.

154540033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 154540033 is about 12431.4131537810. The cubic root of 154540033 is about 536.6366546149.

Adding to 154540033 its reverse (330045451), we get a palindrome (484585484).

The spelling of 154540033 in words is "one hundred fifty-four million, five hundred forty thousand, thirty-three".