1382942161 has 2 divisors, whose sum is σ = 1382942162. Its totient is φ = 1382942160.

The previous prime is 1382942131. The next prime is 1382942203. The reversal of 1382942161 is 1612492831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1356522561 + 26419600 = 36831^2 + 5140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1382942161 - 2¹⁹ = 1382417873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1382942161.

It is not a weakly prime, because it can be changed into another prime (1382942131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691471080 + 691471081.

It is an arithmetic number, because the mean of its divisors is an integer number (691471081).

Almost surely, 2^1382942161 is an apocalyptic number.

It is an amenable number.

1382942161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1382942161 is an equidigital number, since it uses as much as digits as its factorization.

1382942161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 1382942161 is about 37187.9303134767. The cubic root of 1382942161 is about 1114.1269311513.

The spelling of 1382942161 in words is "one billion, three hundred eighty-two million, nine hundred forty-two thousand, one hundred sixty-one".