213055001 has 2 divisors, whose sum is σ = 213055002. Its totient is φ = 213055000.

The previous prime is 213054979. The next prime is 213055013. The reversal of 213055001 is 100550312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193905625 + 19149376 = 13925^2 + 4376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213055001 is a prime.

It is a super-2 number, since 2×213055001² = 90784866902220002, which contains 22 as substring.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (213055081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106527500 + 106527501.

It is an arithmetic number, because the mean of its divisors is an integer number (106527501).

Almost surely, 2^213055001 is an apocalyptic number.

It is an amenable number.

213055001 is a deficient number, since it is larger than the sum of its proper divisors (1).

213055001 is an equidigital number, since it uses as much as digits as its factorization.

213055001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 213055001 is about 14596.4037009121. The cubic root of 213055001 is about 597.2606614815.

The spelling of 213055001 in words is "two hundred thirteen million, fifty-five thousand, one".