2546421139 has 2 divisors, whose sum is σ = 2546421140. Its totient is φ = 2546421138.

The previous prime is 2546421133. The next prime is 2546421161. The reversal of 2546421139 is 9311246452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2546421139 - 2¹¹ = 2546419091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2546421098 and 2546421107.

It is not a weakly prime, because it can be changed into another prime (2546421133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1273210569 + 1273210570.

It is an arithmetic number, because the mean of its divisors is an integer number (1273210570).

Almost surely, 2^2546421139 is an apocalyptic number.

2546421139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2546421139 is an equidigital number, since it uses as much as digits as its factorization.

2546421139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 2546421139 is about 50462.0762454341. The cubic root of 2546421139 is about 1365.5577676435.

The spelling of 2546421139 in words is "two billion, five hundred forty-six million, four hundred twenty-one thousand, one hundred thirty-nine".