214507057 has 4 divisors (see below), whose sum is σ = 214543396. Its totient is φ = 214470720.

The previous prime is 214507021. The next prime is 214507063. The reversal of 214507057 is 750705412.

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 166952241 + 47554816 = 12921^2 + 6896^2 .

It is a cyclic number.

It is not a de Polignac number, because 214507057 - 2¹¹ = 214505009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214507087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7044 + ... + 21877.

It is an arithmetic number, because the mean of its divisors is an integer number (53635849).

Almost surely, 2^214507057 is an apocalyptic number.

It is an amenable number.

214507057 is a deficient number, since it is larger than the sum of its proper divisors (36339).

214507057 is an equidigital number, since it uses as much as digits as its factorization.

214507057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36338.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 214507057 is about 14646.0594359029. The cubic root of 214507057 is about 598.6144482438.

The spelling of 214507057 in words is "two hundred fourteen million, five hundred seven thousand, fifty-seven".