1204653489 has 16 divisors (see below), whose sum is σ = 1730495424. Its totient is φ = 741009600.

The previous prime is 1204653487. The next prime is 1204653493. The reversal of 1204653489 is 9843564021.

It is not a de Polignac number, because 1204653489 - 2¹ = 1204653487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1204653489.

It is not an unprimeable number, because it can be changed into a prime (1204653487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114334 + ... + 124424.

It is an arithmetic number, because the mean of its divisors is an integer number (108155964).

Almost surely, 2^1204653489 is an apocalyptic number.

It is an amenable number.

1204653489 is a deficient number, since it is larger than the sum of its proper divisors (525841935).

1204653489 is a wasteful number, since it uses less digits than its factorization.

1204653489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13168.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 1204653489 is about 34708.1184883307. The cubic root of 1204653489 is about 1064.0304279392.

The spelling of 1204653489 in words is "one billion, two hundred four million, six hundred fifty-three thousand, four hundred eighty-nine".