1204655601 has 4 divisors (see below), whose sum is σ = 1606207472. Its totient is φ = 803103732.

The previous prime is 1204655561. The next prime is 1204655623. The reversal of 1204655601 is 1065564021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1204655601 - 2¹¹ = 1204653553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204655201) 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, 200775931 + ... + 200775936.

It is an arithmetic number, because the mean of its divisors is an integer number (401551868).

Almost surely, 2^1204655601 is an apocalyptic number.

It is an amenable number.

1204655601 is a deficient number, since it is larger than the sum of its proper divisors (401551871).

1204655601 is an equidigital number, since it uses as much as digits as its factorization.

1204655601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401551870.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1204655601 is about 34708.1489134756. The cubic root of 1204655601 is about 1064.0310497586.

The spelling of 1204655601 in words is "one billion, two hundred four million, six hundred fifty-five thousand, six hundred one".