1233728903 has 4 divisors (see below), whose sum is σ = 1345886088. Its totient is φ = 1121571720.

The previous prime is 1233728891. The next prime is 1233728929. The reversal of 1233728903 is 3098273321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233728903 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 (1233728963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56078576 + ... + 56078597.

It is an arithmetic number, because the mean of its divisors is an integer number (336471522).

Almost surely, 2^1233728903 is an apocalyptic number.

1233728903 is a deficient number, since it is larger than the sum of its proper divisors (112157185).

1233728903 is a wasteful number, since it uses less digits than its factorization.

1233728903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112157184.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1233728903 is about 35124.4772630142. The cubic root of 1233728903 is about 1072.5229146579.

The spelling of 1233728903 in words is "one billion, two hundred thirty-three million, seven hundred twenty-eight thousand, nine hundred three".