455221379 has 2 divisors, whose sum is σ = 455221380. Its totient is φ = 455221378.

The previous prime is 455221369. The next prime is 455221411. The reversal of 455221379 is 973122554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 455221379 - 2¹² = 455217283 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (455221339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227610689 + 227610690.

It is an arithmetic number, because the mean of its divisors is an integer number (227610690).

Almost surely, 2^455221379 is an apocalyptic number.

455221379 is a deficient number, since it is larger than the sum of its proper divisors (1).

455221379 is an equidigital number, since it uses as much as digits as its factorization.

455221379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 455221379 is about 21335.9175804557. The cubic root of 455221379 is about 769.2618883982.

The spelling of 455221379 in words is "four hundred fifty-five million, two hundred twenty-one thousand, three hundred seventy-nine".