1020226265 has 8 divisors (see below), whose sum is σ = 1226472840. Its totient is φ = 814713472.

The previous prime is 1020226201. The next prime is 1020226343. The reversal of 1020226265 is 5626220201.

It can be written as a sum of positive squares in 4 ways, for example, as 33512521 + 986713744 = 5789^2 + 31412^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1020226265 - 2⁶ = 1020226201 is a prime.

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, 180380 + ... + 185949.

It is an arithmetic number, because the mean of its divisors is an integer number (153309105).

Almost surely, 2^1020226265 is an apocalyptic number.

It is an amenable number.

1020226265 is a deficient number, since it is larger than the sum of its proper divisors (206246575).

1020226265 is an equidigital number, since it uses as much as digits as its factorization.

1020226265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366891.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1020226265 is about 31940.9809648984. The cubic root of 1020226265 is about 1006.6971365693.

Adding to 1020226265 its reverse (5626220201), we get a palindrome (6646446466).

The spelling of 1020226265 in words is "one billion, twenty million, two hundred twenty-six thousand, two hundred sixty-five".