245601641 has 8 divisors (see below), whose sum is σ = 248668200. Its totient is φ = 242542080.

The previous prime is 245601611. The next prime is 245601647. The reversal of 245601641 is 146106542.

It can be written as a sum of positive squares in 4 ways, for example, as 101505625 + 144096016 = 10075^2 + 12004^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245601641 - 2¹⁰ = 245600617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245601647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116525 + ... + 118613.

It is an arithmetic number, because the mean of its divisors is an integer number (31083525).

Almost surely, 2^245601641 is an apocalyptic number.

It is an amenable number.

245601641 is a deficient number, since it is larger than the sum of its proper divisors (3066559).

245601641 is a wasteful number, since it uses less digits than its factorization.

245601641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 245601641 is about 15671.6827749926. The cubic root of 245601641 is about 626.2442549370.

The spelling of 245601641 in words is "two hundred forty-five million, six hundred one thousand, six hundred forty-one".