163245149 has 4 divisors (see below), whose sum is σ = 167226780. Its totient is φ = 159263520.

The previous prime is 163245139. The next prime is 163245193. The reversal of 163245149 is 941542361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12201049 + 151044100 = 3493^2 + 12290^2 .

It is a cyclic number.

It is not a de Polignac number, because 163245149 - 2⁴ = 163245133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163245119) 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 in 3 ways as a sum of consecutive naturals, for example, 1990754 + ... + 1990835.

It is an arithmetic number, because the mean of its divisors is an integer number (41806695).

Almost surely, 2^163245149 is an apocalyptic number.

It is an amenable number.

163245149 is a deficient number, since it is larger than the sum of its proper divisors (3981631).

163245149 is an equidigital number, since it uses as much as digits as its factorization.

163245149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981630.

The product of its digits is 25920, while the sum is 35.

The square root of 163245149 is about 12776.7425034709. The cubic root of 163245149 is about 546.5292727209.

The spelling of 163245149 in words is "one hundred sixty-three million, two hundred forty-five thousand, one hundred forty-nine".