1201455504 has 50 divisors (see below), whose sum is σ = 3477364550. Its totient is φ = 400484736.

The previous prime is 1201455503. The next prime is 1201455533. The reversal of 1201455504 is 4055541021.

1201455504 is a `hidden beast` number, since 1 + 201 + 455 + 5 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1033493904 + 167961600 = 32148^2 + 12960^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1201455503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 462229 + ... + 464820.

It is an arithmetic number, because the mean of its divisors is an integer number (69547291).

Almost surely, 2^1201455504 is an apocalyptic number.

It is an amenable number.

1201455504 is an abundant number, since it is smaller than the sum of its proper divisors (2275909046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201455504 is an equidigital number, since it uses as much as digits as its factorization.

1201455504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927069 (or 927054 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1201455504 is about 34662.0181755189. The cubic root of 1201455504 is about 1063.0880355372.

Adding to 1201455504 its reverse (4055541021), we get a palindrome (5256996525).

The spelling of 1201455504 in words is "one billion, two hundred one million, four hundred fifty-five thousand, five hundred four".