1265223003 has 8 divisors (see below), whose sum is σ = 1840324416. Its totient is φ = 766801800.

The previous prime is 1265222989. The next prime is 1265223017. The reversal of 1265223003 is 3003225621.

It is an interprime number because it is at equal distance from previous prime (1265222989) and next prime (1265223017).

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

It is not a de Polignac number, because 1265223003 - 2²⁶ = 1198114139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1265223083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19170013 + ... + 19170078.

It is an arithmetic number, because the mean of its divisors is an integer number (230040552).

Almost surely, 2^1265223003 is an apocalyptic number.

1265223003 is a deficient number, since it is larger than the sum of its proper divisors (575101413).

1265223003 is a wasteful number, since it uses less digits than its factorization.

1265223003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38340105.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1265223003 is about 35569.9733342605. The cubic root of 1265223003 is about 1081.5726411585.

Adding to 1265223003 its reverse (3003225621), we get a palindrome (4268448624).

The spelling of 1265223003 in words is "one billion, two hundred sixty-five million, two hundred twenty-three thousand, three".