1382435657 has 2 divisors, whose sum is σ = 1382435658. Its totient is φ = 1382435656.

The previous prime is 1382435651. The next prime is 1382435683. The reversal of 1382435657 is 7565342831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1379676736 + 2758921 = 37144^2 + 1661^2 .

It is an emirp because it is prime and its reverse (7565342831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1382435657 - 2⁴ = 1382435641 is a prime.

It is a super-2 number, since 2×1382435657² = 3822256691490043298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1382435651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691217828 + 691217829.

It is an arithmetic number, because the mean of its divisors is an integer number (691217829).

Almost surely, 2^1382435657 is an apocalyptic number.

It is an amenable number.

1382435657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1382435657 is an equidigital number, since it uses as much as digits as its factorization.

1382435657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 44.

The square root of 1382435657 is about 37181.1196308019. The cubic root of 1382435657 is about 1113.9908978281.

The spelling of 1382435657 in words is "one billion, three hundred eighty-two million, four hundred thirty-five thousand, six hundred fifty-seven".