1204513045 has 4 divisors (see below), whose sum is σ = 1445415660. Its totient is φ = 963610432.

The previous prime is 1204513031. The next prime is 1204513061. The reversal of 1204513045 is 5403154021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 625100004 + 579413041 = 25002^2 + 24071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204513045 is a prime.

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, 120451300 + ... + 120451309.

It is an arithmetic number, because the mean of its divisors is an integer number (361353915).

Almost surely, 2^1204513045 is an apocalyptic number.

It is an amenable number.

1204513045 is a deficient number, since it is larger than the sum of its proper divisors (240902615).

1204513045 is an equidigital number, since it uses as much as digits as its factorization.

1204513045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240902614.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1204513045 is about 34706.0952139534. The cubic root of 1204513045 is about 1063.9890764915.

Adding to 1204513045 its reverse (5403154021), we get a palindrome (6607667066).

The spelling of 1204513045 in words is "one billion, two hundred four million, five hundred thirteen thousand, forty-five".