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124125401 is a prime number
BaseRepresentation
bin1110110011000…
…00000011011001
322122120020001002
413121200003121
5223234003101
620152234345
73035022431
oct731400331
9278506032
10124125401
116407a284
123569b9b5
131c93c8aa
14126b12c1
15ad6cd6b
hex76600d9

124125401 has 2 divisors, whose sum is σ = 124125402. Its totient is φ = 124125400.

The previous prime is 124125389. The next prime is 124125413. The reversal of 124125401 is 104521421.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (124125389) and next prime (124125413).

It can be written as a sum of positive squares in only one way, i.e., 112869376 + 11256025 = 10624^2 + 3355^2 .

It is an emirp because it is prime and its reverse (104521421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124125401 - 214 = 124109017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124125451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62062700 + 62062701.

It is an arithmetic number, because the mean of its divisors is an integer number (62062701).

Almost surely, 2124125401 is an apocalyptic number.

It is an amenable number.

124125401 is a deficient number, since it is larger than the sum of its proper divisors (1).

124125401 is an equidigital number, since it uses as much as digits as its factorization.

124125401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 124125401 is about 11141.1579739271. The cubic root of 124125401 is about 498.8311376509.

Adding to 124125401 its reverse (104521421), we get a palindrome (228646822).

The spelling of 124125401 in words is "one hundred twenty-four million, one hundred twenty-five thousand, four hundred one".