246561965 has 16 divisors (see below), whose sum is σ = 337378608. Its totient is φ = 171365376.

The previous prime is 246561961. The next prime is 246561971. The reversal of 246561965 is 569165642.

It can be written as a sum of positive squares in 8 ways, for example, as 6869641 + 239692324 = 2621^2 + 15482^2 .

It is not a de Polignac number, because 246561965 - 2² = 246561961 is a prime.

It is a super-2 number, since 2×246561965² = 121585605169322450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (246561961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110462 + ... + 112671.

It is an arithmetic number, because the mean of its divisors is an integer number (21086163).

Almost surely, 2^246561965 is an apocalyptic number.

It is an amenable number.

246561965 is a deficient number, since it is larger than the sum of its proper divisors (90816643).

246561965 is a wasteful number, since it uses less digits than its factorization.

246561965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223168.

The product of its digits is 388800, while the sum is 44.

The square root of 246561965 is about 15702.2917117216. The cubic root of 246561965 is about 627.0594167641.

The spelling of 246561965 in words is "two hundred forty-six million, five hundred sixty-one thousand, nine hundred sixty-five".