1648839131 has 2 divisors, whose sum is σ = 1648839132. Its totient is φ = 1648839130.

The previous prime is 1648839083. The next prime is 1648839259. The reversal of 1648839131 is 1319388461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1648839131 - 2¹⁸ = 1648576987 is a prime.

It is a super-2 number, since 2×1648839131² = 5437340959833670322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1648832131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824419565 + 824419566.

It is an arithmetic number, because the mean of its divisors is an integer number (824419566).

Almost surely, 2^1648839131 is an apocalyptic number.

1648839131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648839131 is an equidigital number, since it uses as much as digits as its factorization.

1648839131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 44.

The square root of 1648839131 is about 40605.9001993553. The cubic root of 1648839131 is about 1181.3885623933.

The spelling of 1648839131 in words is "one billion, six hundred forty-eight million, eight hundred thirty-nine thousand, one hundred thirty-one".