1011646325 has 6 divisors (see below), whose sum is σ = 1254441474. Its totient is φ = 809317040.

The previous prime is 1011646291. The next prime is 1011646379. The reversal of 1011646325 is 5236461101.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12517444 + 999128881 = 3538^2 + 31609^2 .

It is not a de Polignac number, because 1011646325 - 2⁶ = 1011646261 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 5 ways as a sum of consecutive naturals, for example, 20232902 + ... + 20232951.

It is an arithmetic number, because the mean of its divisors is an integer number (209073579).

Almost surely, 2^1011646325 is an apocalyptic number.

It is an amenable number.

1011646325 is a deficient number, since it is larger than the sum of its proper divisors (242795149).

1011646325 is an equidigital number, since it uses as much as digits as its factorization.

1011646325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40465863 (or 40465858 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1011646325 is about 31806.3881162260. The cubic root of 1011646325 is about 1003.8671343281.

The spelling of 1011646325 in words is "one billion, eleven million, six hundred forty-six thousand, three hundred twenty-five".