214142457 has 4 divisors (see below), whose sum is σ = 285523280. Its totient is φ = 142761636.

The previous prime is 214142449. The next prime is 214142473. The reversal of 214142457 is 754241412.

214142457 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 214142457 - 2³ = 214142449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214142437) 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, 35690407 + ... + 35690412.

It is an arithmetic number, because the mean of its divisors is an integer number (71380820).

Almost surely, 2^214142457 is an apocalyptic number.

It is an amenable number.

214142457 is a deficient number, since it is larger than the sum of its proper divisors (71380823).

214142457 is an equidigital number, since it uses as much as digits as its factorization.

214142457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71380822.

The product of its digits is 8960, while the sum is 30.

The square root of 214142457 is about 14633.6071082970. The cubic root of 214142457 is about 598.2750987223.

Adding to 214142457 its reverse (754241412), we get a palindrome (968383869).

It can be divided in two parts, 21414 and 2457, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 214142457 in words is "two hundred fourteen million, one hundred forty-two thousand, four hundred fifty-seven".