1012161443 has 4 divisors (see below), whose sum is σ = 1019443320. Its totient is φ = 1004879568.

The previous prime is 1012161431. The next prime is 1012161467. The reversal of 1012161443 is 3441612101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012161443 - 2⁴ = 1012161427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012131443) 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, 3640730 + ... + 3641007.

It is an arithmetic number, because the mean of its divisors is an integer number (254860830).

Almost surely, 2^1012161443 is an apocalyptic number.

1012161443 is a deficient number, since it is larger than the sum of its proper divisors (7281877).

1012161443 is an equidigital number, since it uses as much as digits as its factorization.

1012161443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7281876.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1012161443 is about 31814.4847985945. The cubic root of 1012161443 is about 1004.0374910604.

Adding to 1012161443 its reverse (3441612101), we get a palindrome (4453773544).

The spelling of 1012161443 in words is "one billion, twelve million, one hundred sixty-one thousand, four hundred forty-three".