245493645 has 16 divisors (see below), whose sum is σ = 392997312. Its totient is φ = 130860800.

The previous prime is 245493641. The next prime is 245493653. The reversal of 245493645 is 546394542.

It is not a de Polignac number, because 245493645 - 2² = 245493641 is a prime.

It is a super-3 number, since 3×245493645³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245493597 and 245493606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245493641) 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 15 ways as a sum of consecutive naturals, for example, 39094 + ... + 44936.

It is an arithmetic number, because the mean of its divisors is an integer number (24562332).

Almost surely, 2^245493645 is an apocalyptic number.

It is an amenable number.

245493645 is a deficient number, since it is larger than the sum of its proper divisors (147503667).

245493645 is a wasteful number, since it uses less digits than its factorization.

245493645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8652.

The product of its digits is 518400, while the sum is 42.

The square root of 245493645 is about 15668.2368184809. The cubic root of 245493645 is about 626.1524507322.

The spelling of 245493645 in words is "two hundred forty-five million, four hundred ninety-three thousand, six hundred forty-five".