245165667 has 4 divisors (see below), whose sum is σ = 326887560. Its totient is φ = 163443776.

The previous prime is 245165621. The next prime is 245165689. The reversal of 245165667 is 766561542.

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

It is a cyclic number.

It is not a de Polignac number, because 245165667 - 2⁷ = 245165539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245165617) 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, 40860942 + ... + 40860947.

It is an arithmetic number, because the mean of its divisors is an integer number (81721890).

Almost surely, 2^245165667 is an apocalyptic number.

245165667 is a deficient number, since it is larger than the sum of its proper divisors (81721893).

245165667 is an equidigital number, since it uses as much as digits as its factorization.

245165667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81721892.

The product of its digits is 302400, while the sum is 42.

The square root of 245165667 is about 15657.7669863873. The cubic root of 245165667 is about 625.8734811870.

The spelling of 245165667 in words is "two hundred forty-five million, one hundred sixty-five thousand, six hundred sixty-seven".