213001769 has 2 divisors, whose sum is σ = 213001770. Its totient is φ = 213001768.

The previous prime is 213001729. The next prime is 213001783. The reversal of 213001769 is 967100312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179881744 + 33120025 = 13412^2 + 5755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213001769 is a prime.

It is a super-2 number, since 2×213001769² = 90739507194258722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213001729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106500884 + 106500885.

It is an arithmetic number, because the mean of its divisors is an integer number (106500885).

Almost surely, 2^213001769 is an apocalyptic number.

It is an amenable number.

213001769 is a deficient number, since it is larger than the sum of its proper divisors (1).

213001769 is an equidigital number, since it uses as much as digits as its factorization.

213001769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 213001769 is about 14594.5801241420. The cubic root of 213001769 is about 597.2109152851.

The spelling of 213001769 in words is "two hundred thirteen million, one thousand, seven hundred sixty-nine".