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BaseRepresentation
bin100101000001001…
…0100111011100111
310012120021102210212
41022002110323213
510020440432012
6323131010035
742531610535
oct11202247347
93176242725
101242124007
11588168173
122a7b9991b
1316a452a27
15740abb22
hex4a094ee7

1242124007 has 2 divisors, whose sum is σ = 1242124008. Its totient is φ = 1242124006.

The previous prime is 1242123979. The next prime is 1242124021. The reversal of 1242124007 is 7004212421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242124007 - 212 = 1242119911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242124067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621062003 + 621062004.

It is an arithmetic number, because the mean of its divisors is an integer number (621062004).

Almost surely, 21242124007 is an apocalyptic number.

1242124007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242124007 is an equidigital number, since it uses as much as digits as its factorization.

1242124007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 1242124007 is about 35243.7796923088. The cubic root of 1242124007 is about 1074.9501349143.

Adding to 1242124007 its reverse (7004212421), we get a palindrome (8246336428).

The spelling of 1242124007 in words is "one billion, two hundred forty-two million, one hundred twenty-four thousand, seven".