1052266405 has 4 divisors (see below), whose sum is σ = 1262719692. Its totient is φ = 841813120.

The previous prime is 1052266393. The next prime is 1052266427. The reversal of 1052266405 is 5046622501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5046622501 = 109 ⋅46299289.

It can be written as a sum of positive squares in 2 ways, for example, as 204175521 + 848090884 = 14289^2 + 29122^2 .

It is not a de Polignac number, because 1052266405 - 2¹⁷ = 1052135333 is a prime.

It is a super-2 number, since 2×1052266405² = 2214529174183248050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105226636 + ... + 105226645.

It is an arithmetic number, because the mean of its divisors is an integer number (315679923).

Almost surely, 2^1052266405 is an apocalyptic number.

It is an amenable number.

1052266405 is a deficient number, since it is larger than the sum of its proper divisors (210453287).

1052266405 is an equidigital number, since it uses as much as digits as its factorization.

1052266405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210453286.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1052266405 is about 32438.6560294967. The cubic root of 1052266405 is about 1017.1271220113.

Adding to 1052266405 its reverse (5046622501), we get a palindrome (6098888906).

The spelling of 1052266405 in words is "one billion, fifty-two million, two hundred sixty-six thousand, four hundred five".