1415256641 has 2 divisors, whose sum is σ = 1415256642. Its totient is φ = 1415256640.

The previous prime is 1415256607. The next prime is 1415256643. The reversal of 1415256641 is 1466525141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1391588416 + 23668225 = 37304^2 + 4865^2 .

It is a cyclic number.

It is not a de Polignac number, because 1415256641 - 2²⁶ = 1348147777 is a prime.

Together with 1415256643, 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 (1415256643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707628320 + 707628321.

It is an arithmetic number, because the mean of its divisors is an integer number (707628321).

Almost surely, 2^1415256641 is an apocalyptic number.

It is an amenable number.

1415256641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1415256641 is an equidigital number, since it uses as much as digits as its factorization.

1415256641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 35.

The square root of 1415256641 is about 37619.8968765200. The cubic root of 1415256641 is about 1122.7379445080.

The spelling of 1415256641 in words is "one billion, four hundred fifteen million, two hundred fifty-six thousand, six hundred forty-one".