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122100073 is a prime number
BaseRepresentation
bin1110100011100…
…01100101101001
322111202022210221
413101301211221
5222224200243
620041010041
73011555614
oct721614551
9274668727
10122100073
1162a16657
1234a83921
131c3b0a84
141230517b
15aabcbed
hex7471969

122100073 has 2 divisors, whose sum is σ = 122100074. Its totient is φ = 122100072.

The previous prime is 122100071. The next prime is 122100107. The reversal of 122100073 is 370001221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96668224 + 25431849 = 9832^2 + 5043^2 .

It is a cyclic number.

It is not a de Polignac number, because 122100073 - 21 = 122100071 is a prime.

Together with 122100071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122100071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050036 + 61050037.

It is an arithmetic number, because the mean of its divisors is an integer number (61050037).

Almost surely, 2122100073 is an apocalyptic number.

It is an amenable number.

122100073 is a deficient number, since it is larger than the sum of its proper divisors (1).

122100073 is an equidigital number, since it uses as much as digits as its factorization.

122100073 is an evil number, because the sum of its binary digits is even.

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

The square root of 122100073 is about 11049.8901804498. The cubic root of 122100073 is about 496.1031385089.

Adding to 122100073 its reverse (370001221), we get a palindrome (492101294).

The spelling of 122100073 in words is "one hundred twenty-two million, one hundred thousand, seventy-three".