1301144161 has 4 divisors (see below), whose sum is σ = 1301243824. Its totient is φ = 1301044500.

The previous prime is 1301144137. The next prime is 1301144171. The reversal of 1301144161 is 1614411031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1614411031 = 8969 ⋅179999.

It is a cyclic number.

It is not a de Polignac number, because 1301144161 - 2¹⁷ = 1301013089 is a prime.

It is a super-2 number, since 2×1301144161² = 3385952255408787842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301144171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26655 + ... + 57556.

It is an arithmetic number, because the mean of its divisors is an integer number (325310956).

Almost surely, 2^1301144161 is an apocalyptic number.

It is an amenable number.

1301144161 is a deficient number, since it is larger than the sum of its proper divisors (99663).

1301144161 is an equidigital number, since it uses as much as digits as its factorization.

1301144161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99662.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1301144161 is about 36071.3759232996. The cubic root of 1301144161 is about 1091.7129761396.

Adding to 1301144161 its reverse (1614411031), we get a palindrome (2915555192).

The spelling of 1301144161 in words is "one billion, three hundred one million, one hundred forty-four thousand, one hundred sixty-one".