153422989 has 2 divisors, whose sum is σ = 153422990. Its totient is φ = 153422988.

The previous prime is 153422987. The next prime is 153423007. The reversal of 153422989 is 989224351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149084100 + 4338889 = 12210^2 + 2083^2 .

It is an emirp because it is prime and its reverse (989224351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 153422989 - 2¹ = 153422987 is a prime.

It is a super-2 number, since 2×153422989² = 47077227107388242, which contains 22 as substring.

Together with 153422987, it forms a pair of twin primes.

It is equal to p_8625886 and since 153422989 and 8625886 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153422987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76711494 + 76711495.

It is an arithmetic number, because the mean of its divisors is an integer number (76711495).

Almost surely, 2^153422989 is an apocalyptic number.

It is an amenable number.

153422989 is a deficient number, since it is larger than the sum of its proper divisors (1).

153422989 is an equidigital number, since it uses as much as digits as its factorization.

153422989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 153422989 is about 12386.4033924299. The cubic root of 153422989 is about 535.3405570374.

The spelling of 153422989 in words is "one hundred fifty-three million, four hundred twenty-two thousand, nine hundred eighty-nine".