1455956641 has 2 divisors, whose sum is σ = 1455956642. Its totient is φ = 1455956640.

The previous prime is 1455956639. The next prime is 1455956669. The reversal of 1455956641 is 1466595541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1442480400 + 13476241 = 37980^2 + 3671^2 .

It is a cyclic number.

It is not a de Polignac number, because 1455956641 - 2¹ = 1455956639 is a prime.

Together with 1455956639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1455956591 and 1455956600.

It is not a weakly prime, because it can be changed into another prime (1455956611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727978320 + 727978321.

It is an arithmetic number, because the mean of its divisors is an integer number (727978321).

Almost surely, 2^1455956641 is an apocalyptic number.

It is an amenable number.

1455956641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1455956641 is an equidigital number, since it uses as much as digits as its factorization.

1455956641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 46.

The square root of 1455956641 is about 38156.9998951700. Note that the first 3 decimals coincide. The cubic root of 1455956641 is about 1133.3989706987.

The spelling of 1455956641 in words is "one billion, four hundred fifty-five million, nine hundred fifty-six thousand, six hundred forty-one".