1045125815 has 8 divisors (see below), whose sum is σ = 1277814528. Its totient is φ = 820324960.

The previous prime is 1045125803. The next prime is 1045125827. The reversal of 1045125815 is 5185215401.

It is an interprime number because it is at equal distance from previous prime (1045125803) and next prime (1045125827).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1045125815 - 2¹⁰ = 1045124791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1971671 + ... + 1972200.

It is an arithmetic number, because the mean of its divisors is an integer number (159726816).

Almost surely, 2^1045125815 is an apocalyptic number.

1045125815 is a deficient number, since it is larger than the sum of its proper divisors (232688713).

1045125815 is an equidigital number, since it uses as much as digits as its factorization.

1045125815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943929.

The product of its (nonzero) digits is 8000, while the sum is 32.

The square root of 1045125815 is about 32328.4056983947. The cubic root of 1045125815 is about 1014.8211855478.

The spelling of 1045125815 in words is "one billion, forty-five million, one hundred twenty-five thousand, eight hundred fifteen".