455121517 has 2 divisors, whose sum is σ = 455121518. Its totient is φ = 455121516.

The previous prime is 455121481. The next prime is 455121551. The reversal of 455121517 is 715121554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276257641 + 178863876 = 16621^2 + 13374^2 .

It is a cyclic number.

It is not a de Polignac number, because 455121517 - 2¹⁵ = 455088749 is a prime.

It is equal to p_24109861 and since 455121517 and 24109861 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455121577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227560758 + 227560759.

It is an arithmetic number, because the mean of its divisors is an integer number (227560759).

Almost surely, 2^455121517 is an apocalyptic number.

It is an amenable number.

455121517 is a deficient number, since it is larger than the sum of its proper divisors (1).

455121517 is an equidigital number, since it uses as much as digits as its factorization.

455121517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7000, while the sum is 31.

The square root of 455121517 is about 21333.5772199601. The cubic root of 455121517 is about 769.2056332425.

The spelling of 455121517 in words is "four hundred fifty-five million, one hundred twenty-one thousand, five hundred seventeen".