1204939045 has 4 divisors (see below), whose sum is σ = 1445926860. Its totient is φ = 963951232.

The previous prime is 1204939033. The next prime is 1204939051. The reversal of 1204939045 is 5409394021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5409394021 = 7307 ⋅740303.

It can be written as a sum of positive squares in 2 ways, for example, as 328660641 + 876278404 = 18129^2 + 29602^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204939045 - 2⁵ = 1204939013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1204938995 and 1204939013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120493900 + ... + 120493909.

It is an arithmetic number, because the mean of its divisors is an integer number (361481715).

Almost surely, 2^1204939045 is an apocalyptic number.

It is an amenable number.

1204939045 is a deficient number, since it is larger than the sum of its proper divisors (240987815).

1204939045 is an equidigital number, since it uses as much as digits as its factorization.

1204939045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240987814.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1204939045 is about 34712.2319219033. The cubic root of 1204939045 is about 1064.1144953414.

The spelling of 1204939045 in words is "one billion, two hundred four million, nine hundred thirty-nine thousand, forty-five".