246978121 has 6 divisors (see below), whose sum is σ = 267438030. Its totient is φ = 227979648.

The previous prime is 246978041. The next prime is 246978133. The reversal of 246978121 is 121879642.

246978121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2368521 + 244609600 = 1539^2 + 15640^2 .

It is not a de Polignac number, because 246978121 - 2⁷ = 246977993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (246978161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 730536 + ... + 730873.

It is an arithmetic number, because the mean of its divisors is an integer number (44573005).

Almost surely, 2^246978121 is an apocalyptic number.

It is an amenable number.

246978121 is a deficient number, since it is larger than the sum of its proper divisors (20459909).

246978121 is a wasteful number, since it uses less digits than its factorization.

246978121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461435 (or 1461422 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 246978121 is about 15715.5375663704. The cubic root of 246978121 is about 627.4120094820.

The spelling of 246978121 in words is "two hundred forty-six million, nine hundred seventy-eight thousand, one hundred twenty-one".