213587057 has 2 divisors, whose sum is σ = 213587058. Its totient is φ = 213587056.

The previous prime is 213587053. The next prime is 213587107. The reversal of 213587057 is 750785312.

It is a happy number.

213587057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150209536 + 63377521 = 12256^2 + 7961^2 .

It is a cyclic number.

It is not a de Polignac number, because 213587057 - 2² = 213587053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213587057.

It is not a weakly prime, because it can be changed into another prime (213587053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106793528 + 106793529.

It is an arithmetic number, because the mean of its divisors is an integer number (106793529).

Almost surely, 2^213587057 is an apocalyptic number.

It is an amenable number.

213587057 is a deficient number, since it is larger than the sum of its proper divisors (1).

213587057 is an equidigital number, since it uses as much as digits as its factorization.

213587057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 213587057 is about 14614.6179217932. The cubic root of 213587057 is about 597.7574220348.

The spelling of 213587057 in words is "two hundred thirteen million, five hundred eighty-seven thousand, fifty-seven".