481776121 has 2 divisors, whose sum is σ = 481776122. Its totient is φ = 481776120.

The previous prime is 481776079. The next prime is 481776131. The reversal of 481776121 is 121677184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396010000 + 85766121 = 19900^2 + 9261^2 .

It is a cyclic number.

It is not a de Polignac number, because 481776121 - 2⁷ = 481775993 is a prime.

It is equal to p_25445269 and since 481776121 and 25445269 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (481776131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240888060 + 240888061.

It is an arithmetic number, because the mean of its divisors is an integer number (240888061).

Almost surely, 2^481776121 is an apocalyptic number.

It is an amenable number.

481776121 is a deficient number, since it is larger than the sum of its proper divisors (1).

481776121 is an equidigital number, since it uses as much as digits as its factorization.

481776121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 37.

The square root of 481776121 is about 21949.3991033923. The cubic root of 481776121 is about 783.9380726674.

The spelling of 481776121 in words is "four hundred eighty-one million, seven hundred seventy-six thousand, one hundred twenty-one".