1405792961 has 2 divisors, whose sum is σ = 1405792962. Its totient is φ = 1405792960.

The previous prime is 1405792943. The next prime is 1405792963. The reversal of 1405792961 is 1692975041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1349827600 + 55965361 = 36740^2 + 7481^2 .

It is an emirp because it is prime and its reverse (1692975041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1405792961 - 2⁶ = 1405792897 is a prime.

Together with 1405792963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1405792963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702896480 + 702896481.

It is an arithmetic number, because the mean of its divisors is an integer number (702896481).

Almost surely, 2^1405792961 is an apocalyptic number.

It is an amenable number.

1405792961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405792961 is an equidigital number, since it uses as much as digits as its factorization.

1405792961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 1405792961 is about 37493.9056514522. The cubic root of 1405792961 is about 1120.2298000512.

The spelling of 1405792961 in words is "one billion, four hundred five million, seven hundred ninety-two thousand, nine hundred sixty-one".