1051443061 has 4 divisors (see below), whose sum is σ = 1051513900. Its totient is φ = 1051372224.

The previous prime is 1051443037. The next prime is 1051443077. The reversal of 1051443061 is 1603441501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 562590961 + 488852100 = 23719^2 + 22110^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051443061 - 2⁷ = 1051442933 is a prime.

It is a super-2 number, since 2×1051443061² = 2211065021050099442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051443011) 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, 3666 + ... + 46003.

It is an arithmetic number, because the mean of its divisors is an integer number (262878475).

Almost surely, 2^1051443061 is an apocalyptic number.

It is an amenable number.

1051443061 is a deficient number, since it is larger than the sum of its proper divisors (70839).

1051443061 is an equidigital number, since it uses as much as digits as its factorization.

1051443061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70838.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1051443061 is about 32425.9627613430. The cubic root of 1051443061 is about 1016.8617696812.

Adding to 1051443061 its reverse (1603441501), we get a palindrome (2654884562).

The spelling of 1051443061 in words is "one billion, fifty-one million, four hundred forty-three thousand, sixty-one".