2646440141 has 2 divisors, whose sum is σ = 2646440142. Its totient is φ = 2646440140.

The previous prime is 2646440131. The next prime is 2646440171. The reversal of 2646440141 is 1410446462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2537237641 + 109202500 = 50371^2 + 10450^2 .

It is a cyclic number.

It is not a de Polignac number, because 2646440141 - 2¹⁸ = 2646177997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2646440098 and 2646440107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2646440131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323220070 + 1323220071.

It is an arithmetic number, because the mean of its divisors is an integer number (1323220071).

Almost surely, 2^2646440141 is an apocalyptic number.

It is an amenable number.

2646440141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646440141 is an equidigital number, since it uses as much as digits as its factorization.

2646440141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 2646440141 is about 51443.5626779483. The cubic root of 2646440141 is about 1383.2075742968.

The spelling of 2646440141 in words is "two billion, six hundred forty-six million, four hundred forty thousand, one hundred forty-one".