1274124161 has 2 divisors, whose sum is σ = 1274124162. Its totient is φ = 1274124160.

The previous prime is 1274124151. The next prime is 1274124199. The reversal of 1274124161 is 1614214721.

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., 1176490000 + 97634161 = 34300^2 + 9881^2 .

It is a cyclic number.

It is not a de Polignac number, because 1274124161 - 2¹⁸ = 1273862017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1274124101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637062080 + 637062081.

It is an arithmetic number, because the mean of its divisors is an integer number (637062081).

Almost surely, 2^1274124161 is an apocalyptic number.

It is an amenable number.

1274124161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274124161 is an equidigital number, since it uses as much as digits as its factorization.

1274124161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 29.

The square root of 1274124161 is about 35694.8758367360. The cubic root of 1274124161 is about 1084.1030936499.

Adding to 1274124161 its reverse (1614214721), we get a palindrome (2888338882).

The spelling of 1274124161 in words is "one billion, two hundred seventy-four million, one hundred twenty-four thousand, one hundred sixty-one".