1202653603 has 4 divisors (see below), whose sum is σ = 1205431528. Its totient is φ = 1199875680.

The previous prime is 1202653597. The next prime is 1202653619. The reversal of 1202653603 is 3063562021.

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

It is a cyclic number.

It is not a de Polignac number, because 1202653603 - 2²⁵ = 1169099171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202653663) 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, 1388313 + ... + 1389178.

It is an arithmetic number, because the mean of its divisors is an integer number (301357882).

Almost surely, 2^1202653603 is an apocalyptic number.

1202653603 is a deficient number, since it is larger than the sum of its proper divisors (2777925).

1202653603 is an equidigital number, since it uses as much as digits as its factorization.

1202653603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777924.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1202653603 is about 34679.2964605685. The cubic root of 1202653603 is about 1063.4412908365.

The spelling of 1202653603 in words is "one billion, two hundred two million, six hundred fifty-three thousand, six hundred three".