1201302556 has 6 divisors (see below), whose sum is σ = 2102279480. Its totient is φ = 600651276.

The previous prime is 1201302541. The next prime is 1201302559. The reversal of 1201302556 is 6552031021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201302556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201302559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150162816 + ... + 150162823.

Almost surely, 2^1201302556 is an apocalyptic number.

It is an amenable number.

1201302556 is a deficient number, since it is larger than the sum of its proper divisors (900976924).

1201302556 is a wasteful number, since it uses less digits than its factorization.

1201302556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300325643 (or 300325641 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1201302556 is about 34659.8118286871. The cubic root of 1201302556 is about 1063.0429224532.

Adding to 1201302556 its reverse (6552031021), we get a palindrome (7753333577).

The spelling of 1201302556 in words is "one billion, two hundred one million, three hundred two thousand, five hundred fifty-six".