1485919657 has 2 divisors, whose sum is σ = 1485919658. Its totient is φ = 1485919656.

The previous prime is 1485919651. The next prime is 1485919709. The reversal of 1485919657 is 7569195841.

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., 1025216361 + 460703296 = 32019^2 + 21464^2 .

It is a cyclic number.

It is not a de Polignac number, because 1485919657 - 2³ = 1485919649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1485919598 and 1485919607.

It is not a weakly prime, because it can be changed into another prime (1485919651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 742959828 + 742959829.

It is an arithmetic number, because the mean of its divisors is an integer number (742959829).

Almost surely, 2^1485919657 is an apocalyptic number.

It is an amenable number.

1485919657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1485919657 is an equidigital number, since it uses as much as digits as its factorization.

1485919657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 55.

The square root of 1485919657 is about 38547.6284225113. The cubic root of 1485919657 is about 1141.1212055766.

The spelling of 1485919657 in words is "one billion, four hundred eighty-five million, nine hundred nineteen thousand, six hundred fifty-seven".