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122590231 is a prime number
BaseRepresentation
bin1110100111010…
…01010000010111
322112200020011221
413103221100113
5222340341411
620055311211
73015666631
oct723512027
9275606157
10122590231
1163220945
123507b507
131c522bca
14123d1a51
15ab68071
hex74e9417

122590231 has 2 divisors, whose sum is σ = 122590232. Its totient is φ = 122590230.

The previous prime is 122590217. The next prime is 122590267. The reversal of 122590231 is 132095221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (132095221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122590231 - 213 = 122582039 is a prime.

It is a super-2 number, since 2×1225902312 = 30056729473266722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122590196 and 122590205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122590201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61295115 + 61295116.

It is an arithmetic number, because the mean of its divisors is an integer number (61295116).

Almost surely, 2122590231 is an apocalyptic number.

122590231 is a deficient number, since it is larger than the sum of its proper divisors (1).

122590231 is an equidigital number, since it uses as much as digits as its factorization.

122590231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 122590231 is about 11072.0472813297. The cubic root of 122590231 is about 496.7661035885.

The spelling of 122590231 in words is "one hundred twenty-two million, five hundred ninety thousand, two hundred thirty-one".