153533969 has 2 divisors, whose sum is σ = 153533970. Its totient is φ = 153533968.

The previous prime is 153533929. The next prime is 153533977. The reversal of 153533969 is 969335351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131790400 + 21743569 = 11480^2 + 4663^2 .

It is an emirp because it is prime and its reverse (969335351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 153533969 - 2⁸ = 153533713 is a prime.

It is a super-2 number, since 2×153533969² = 47145359273785922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (153533909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76766984 + 76766985.

It is an arithmetic number, because the mean of its divisors is an integer number (76766985).

Almost surely, 2^153533969 is an apocalyptic number.

It is an amenable number.

153533969 is a deficient number, since it is larger than the sum of its proper divisors (1).

153533969 is an equidigital number, since it uses as much as digits as its factorization.

153533969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 328050, while the sum is 44.

The square root of 153533969 is about 12390.8824948024. The cubic root of 153533969 is about 535.4696071789.

The spelling of 153533969 in words is "one hundred fifty-three million, five hundred thirty-three thousand, nine hundred sixty-nine".