245679147 has 24 divisors (see below), whose sum is σ = 412220640. Its totient is φ = 138084480.

The previous prime is 245679131. The next prime is 245679173. The reversal of 245679147 is 741976542.

It is not a de Polignac number, because 245679147 - 2⁴ = 245679131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245679107) 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 in 23 ways as a sum of consecutive naturals, for example, 28122 + ... + 35807.

It is an arithmetic number, because the mean of its divisors is an integer number (17175860).

Almost surely, 2^245679147 is an apocalyptic number.

245679147 is a deficient number, since it is larger than the sum of its proper divisors (166541493).

245679147 is a wasteful number, since it uses less digits than its factorization.

245679147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64003 (or 64000 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 245679147 is about 15674.1553839433. The cubic root of 245679147 is about 626.3101239083.

The spelling of 245679147 in words is "two hundred forty-five million, six hundred seventy-nine thousand, one hundred forty-seven".