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124053221 is a prime number
BaseRepresentation
bin1110110010011…
…10011011100101
322122102120000202
413121032123211
5223224200341
620150520245
73034302125
oct731163345
9278376022
10124053221
1164030026
1235666085
131c915a96
1412692c85
15ad5679b
hex764e6e5

124053221 has 2 divisors, whose sum is σ = 124053222. Its totient is φ = 124053220.

The previous prime is 124053187. The next prime is 124053229. The reversal of 124053221 is 122350421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74632321 + 49420900 = 8639^2 + 7030^2 .

It is an emirp because it is prime and its reverse (122350421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124053221 - 218 = 123791077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124053193 and 124053202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124053229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62026610 + 62026611.

It is an arithmetic number, because the mean of its divisors is an integer number (62026611).

Almost surely, 2124053221 is an apocalyptic number.

It is an amenable number.

124053221 is a deficient number, since it is larger than the sum of its proper divisors (1).

124053221 is an equidigital number, since it uses as much as digits as its factorization.

124053221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 124053221 is about 11137.9181627448. The cubic root of 124053221 is about 498.7344273545.

The spelling of 124053221 in words is "one hundred twenty-four million, fifty-three thousand, two hundred twenty-one".