1956508481 has 2 divisors, whose sum is σ = 1956508482. Its totient is φ = 1956508480.

The previous prime is 1956508469. The next prime is 1956508483. The reversal of 1956508481 is 1848056591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1816890625 + 139617856 = 42625^2 + 11816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1956508481 is a prime.

It is a super-2 number, since 2×1956508481² = 7655850872449854722, which contains 22 as substring.

Together with 1956508483, 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 (1956508483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978254240 + 978254241.

It is an arithmetic number, because the mean of its divisors is an integer number (978254241).

Almost surely, 2^1956508481 is an apocalyptic number.

It is an amenable number.

1956508481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1956508481 is an equidigital number, since it uses as much as digits as its factorization.

1956508481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 47.

The square root of 1956508481 is about 44232.4369778560. The cubic root of 1956508481 is about 1250.7213928738.

The spelling of 1956508481 in words is "one billion, nine hundred fifty-six million, five hundred eight thousand, four hundred eighty-one".