1204520377 has 2 divisors, whose sum is σ = 1204520378. Its totient is φ = 1204520376.

The previous prime is 1204520323. The next prime is 1204520381. The reversal of 1204520377 is 7730254021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123322256 + 81198121 = 33516^2 + 9011^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204520377 - 2¹⁹ = 1203996089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204520477) 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 as a sum of consecutive naturals, namely, 602260188 + 602260189.

It is an arithmetic number, because the mean of its divisors is an integer number (602260189).

Almost surely, 2^1204520377 is an apocalyptic number.

It is an amenable number.

1204520377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204520377 is an equidigital number, since it uses as much as digits as its factorization.

1204520377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 1204520377 is about 34706.2008436533. The cubic root of 1204520377 is about 1063.9912353590.

Adding to 1204520377 its reverse (7730254021), we get a palindrome (8934774398).

The spelling of 1204520377 in words is "one billion, two hundred four million, five hundred twenty thousand, three hundred seventy-seven".