1225233503 has 16 divisors (see below), whose sum is σ = 1434867840. Its totient is φ = 1035680256.

The previous prime is 1225233497. The next prime is 1225233509. The reversal of 1225233503 is 3053325221.

It is an interprime number because it is at equal distance from previous prime (1225233497) and next prime (1225233509).

It is not a de Polignac number, because 1225233503 - 2¹⁶ = 1225167967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225233509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66743 + ... + 83096.

It is an arithmetic number, because the mean of its divisors is an integer number (89679240).

Almost surely, 2^1225233503 is an apocalyptic number.

1225233503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1225233503 is a deficient number, since it is larger than the sum of its proper divisors (209634337).

1225233503 is a wasteful number, since it uses less digits than its factorization.

1225233503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149906.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 1225233503 is about 35003.3355981969. The cubic root of 1225233503 is about 1070.0554613579.

Adding to 1225233503 its reverse (3053325221), we get a palindrome (4278558724).

The spelling of 1225233503 in words is "one billion, two hundred twenty-five million, two hundred thirty-three thousand, five hundred three".