245166747 has 48 divisors (see below), whose sum is σ = 407116800. Its totient is φ = 130455360.

The previous prime is 245166739. The next prime is 245166751. The reversal of 245166747 is 747661542.

It is not a de Polignac number, because 245166747 - 2³ = 245166739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245166699 and 245166708.

It is not an unprimeable number, because it can be changed into a prime (245166797) 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 47 ways as a sum of consecutive naturals, for example, 169654 + ... + 171092.

It is an arithmetic number, because the mean of its divisors is an integer number (8481600).

Almost surely, 2^245166747 is an apocalyptic number.

245166747 is a deficient number, since it is larger than the sum of its proper divisors (161950053).

245166747 is a wasteful number, since it uses less digits than its factorization.

245166747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536 (or 1529 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 245166747 is about 15657.8014740257. The cubic root of 245166747 is about 625.8744002150.

The spelling of 245166747 in words is "two hundred forty-five million, one hundred sixty-six thousand, seven hundred forty-seven".