1042566145 has 4 divisors (see below), whose sum is σ = 1251079380. Its totient is φ = 834052912.

The previous prime is 1042566139. The next prime is 1042566169. The reversal of 1042566145 is 5416652401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5416652401 = 113 ⋅47934977.

It can be written as a sum of positive squares in 2 ways, for example, as 254753521 + 787812624 = 15961^2 + 28068^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042566145 - 2²⁹ = 505695233 is a prime.

It is a super-2 number, since 2×1042566145² = 2173888333400322050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1042566145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104256610 + ... + 104256619.

It is an arithmetic number, because the mean of its divisors is an integer number (312769845).

Almost surely, 2^1042566145 is an apocalyptic number.

It is an amenable number.

1042566145 is a deficient number, since it is larger than the sum of its proper divisors (208513235).

1042566145 is an equidigital number, since it uses as much as digits as its factorization.

1042566145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208513234.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1042566145 is about 32288.7928699727. The cubic root of 1042566145 is about 1013.9920251283.

The spelling of 1042566145 in words is "one billion, forty-two million, five hundred sixty-six thousand, one hundred forty-five".