214510610451257 has 4 divisors (see below), whose sum is σ = 216722060043636. Its totient is φ = 212299160858880.

The previous prime is 214510610451253. The next prime is 214510610451281. The reversal of 214510610451257 is 752154016015412.

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 174928028273296 + 39582582177961 = 13226036^2 + 6291469^2 .

It is a cyclic number.

It is not a de Polignac number, because 214510610451257 - 2² = 214510610451253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214510610451253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105724796044 + ... + 1105724796237.

It is an arithmetic number, because the mean of its divisors is an integer number (54180515010909).

Almost surely, 2^{214510610451257} is an apocalyptic number.

It is an amenable number.

214510610451257 is a deficient number, since it is larger than the sum of its proper divisors (2211449592379).

214510610451257 is an equidigital number, since it uses as much as digits as its factorization.

214510610451257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211449592378.

The product of its (nonzero) digits is 336000, while the sum is 44.

Adding to 214510610451257 its reverse (752154016015412), we get a palindrome (966664626466669).

The spelling of 214510610451257 in words is "two hundred fourteen trillion, five hundred ten billion, six hundred ten million, four hundred fifty-one thousand, two hundred fifty-seven".