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122552401 is a prime number
BaseRepresentation
bin1110100111000…
…00000001010001
322112121022021211
413103200001101
5222333134101
620054420121
73015451426
oct723400121
9275538254
10122552401
11631a5484
1235061641
131c50b91a
14123c1d4d
15ab5bc51
hex74e0051

122552401 has 2 divisors, whose sum is σ = 122552402. Its totient is φ = 122552400.

The previous prime is 122552389. The next prime is 122552407. The reversal of 122552401 is 104255221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76108176 + 46444225 = 8724^2 + 6815^2 .

It is a cyclic number.

It is not a de Polignac number, because 122552401 - 25 = 122552369 is a prime.

It is not a weakly prime, because it can be changed into another prime (122552407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61276200 + 61276201.

It is an arithmetic number, because the mean of its divisors is an integer number (61276201).

Almost surely, 2122552401 is an apocalyptic number.

It is an amenable number.

122552401 is a deficient number, since it is larger than the sum of its proper divisors (1).

122552401 is an equidigital number, since it uses as much as digits as its factorization.

122552401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 122552401 is about 11070.3387933703. The cubic root of 122552401 is about 496.7149994754.

The spelling of 122552401 in words is "one hundred twenty-two million, five hundred fifty-two thousand, four hundred one".