1231745603 has 8 divisors (see below), whose sum is σ = 1349078976. Its totient is φ = 1115305000.

The previous prime is 1231745597. The next prime is 1231745617. The reversal of 1231745603 is 3065471321.

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 1231745603 - 2²⁸ = 963310147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231745603.

It is not an unprimeable number, because it can be changed into a prime (1231741603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220301 + ... + 225822.

It is an arithmetic number, because the mean of its divisors is an integer number (168634872).

Almost surely, 2^1231745603 is an apocalyptic number.

1231745603 is a deficient number, since it is larger than the sum of its proper divisors (117333373).

1231745603 is a wasteful number, since it uses less digits than its factorization.

1231745603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446385.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1231745603 is about 35096.2334588770. The cubic root of 1231745603 is about 1071.9478894784.

The spelling of 1231745603 in words is "one billion, two hundred thirty-one million, seven hundred forty-five thousand, six hundred three".