148564399 has 2 divisors, whose sum is σ = 148564400. Its totient is φ = 148564398.

The previous prime is 148564397. The next prime is 148564453. The reversal of 148564399 is 993465841.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148564399 - 2¹ = 148564397 is a prime.

Together with 148564397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148564397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74282199 + 74282200.

It is an arithmetic number, because the mean of its divisors is an integer number (74282200).

Almost surely, 2^148564399 is an apocalyptic number.

148564399 is a deficient number, since it is larger than the sum of its proper divisors (1).

148564399 is an equidigital number, since it uses as much as digits as its factorization.

148564399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The square root of 148564399 is about 12188.6996435223. The cubic root of 148564399 is about 529.6287883615.

The spelling of 148564399 in words is "one hundred forty-eight million, five hundred sixty-four thousand, three hundred ninety-nine".