1963261429 has 2 divisors, whose sum is σ = 1963261430. Its totient is φ = 1963261428.

The previous prime is 1963261373. The next prime is 1963261453. The reversal of 1963261429 is 9241623691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1962047025 + 1214404 = 44295^2 + 1102^2 .

It is a cyclic number.

It is not a de Polignac number, because 1963261429 - 2¹¹ = 1963259381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1963261529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981630714 + 981630715.

It is an arithmetic number, because the mean of its divisors is an integer number (981630715).

Almost surely, 2^1963261429 is an apocalyptic number.

It is an amenable number.

1963261429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1963261429 is an equidigital number, since it uses as much as digits as its factorization.

1963261429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 1963261429 is about 44308.7060181179. The cubic root of 1963261429 is about 1252.1587080243.

The spelling of 1963261429 in words is "one billion, nine hundred sixty-three million, two hundred sixty-one thousand, four hundred twenty-nine".