1052456161 has 4 divisors (see below), whose sum is σ = 1052564500. Its totient is φ = 1052347824.

The previous prime is 1052456159. The next prime is 1052456191. The reversal of 1052456161 is 1616542501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1616542501 = 7 ⋅230934643.

It can be written as a sum of positive squares in 2 ways, for example, as 363131136 + 689325025 = 19056^2 + 26255^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052456161 - 2¹ = 1052456159 is a prime.

It is a super-2 number, since 2×1052456161² = 2215327941653715842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1052456191) 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, 37986 + ... + 59563.

It is an arithmetic number, because the mean of its divisors is an integer number (263141125).

Almost surely, 2^1052456161 is an apocalyptic number.

It is an amenable number.

1052456161 is a deficient number, since it is larger than the sum of its proper divisors (108339).

1052456161 is an equidigital number, since it uses as much as digits as its factorization.

1052456161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108338.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1052456161 is about 32441.5807413880. The cubic root of 1052456161 is about 1017.1882581053.

Adding to 1052456161 its reverse (1616542501), we get a palindrome (2668998662).

The spelling of 1052456161 in words is "one billion, fifty-two million, four hundred fifty-six thousand, one hundred sixty-one".