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1072213 is a prime number
BaseRepresentation
bin100000101110001010101
32000110210121
410011301111
5233302323
634551541
712053662
oct4056125
92013717
101072213
1167262a
124385b1
132b705c
141dca69
15162a5d
hex105c55

1072213 has 2 divisors, whose sum is σ = 1072214. Its totient is φ = 1072212.

The previous prime is 1072199. The next prime is 1072219. The reversal of 1072213 is 3122701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 917764 + 154449 = 958^2 + 393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1072213 is a prime.

It is a super-2 number, since 2×10722132 = 2299281434738, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536106 + 536107.

It is an arithmetic number, because the mean of its divisors is an integer number (536107).

21072213 is an apocalyptic number.

It is an amenable number.

1072213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072213 is an equidigital number, since it uses as much as digits as its factorization.

1072213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1072213 is about 1035.4771846835. The cubic root of 1072213 is about 102.3513769096.

Adding to 1072213 its reverse (3122701), we get a palindrome (4194914).

The spelling of 1072213 in words is "one million, seventy-two thousand, two hundred thirteen".