213579001 has 2 divisors, whose sum is σ = 213579002. Its totient is φ = 213579000.

The previous prime is 213578999. The next prime is 213579013. The reversal of 213579001 is 100975312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196140025 + 17438976 = 14005^2 + 4176^2 .

It is a cyclic number.

It is not a de Polignac number, because 213579001 - 2¹ = 213578999 is a prime.

Together with 213578999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (213579071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106789500 + 106789501.

It is an arithmetic number, because the mean of its divisors is an integer number (106789501).

Almost surely, 2^213579001 is an apocalyptic number.

It is an amenable number.

213579001 is a deficient number, since it is larger than the sum of its proper divisors (1).

213579001 is an equidigital number, since it uses as much as digits as its factorization.

213579001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 213579001 is about 14614.3423047361. The cubic root of 213579001 is about 597.7499066070.

The spelling of 213579001 in words is "two hundred thirteen million, five hundred seventy-nine thousand, one".