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BaseRepresentation
bin100101000001001…
…0100111101000001
310012120021102221012
41022002110331001
510020440432342
6323131010305
742531611024
oct11202247501
93176242835
101242124097
11588168245
122a7b99995
1316a452a96
15740abb82
hex4a094f41

1242124097 has 2 divisors, whose sum is σ = 1242124098. Its totient is φ = 1242124096.

The previous prime is 1242124067. The next prime is 1242124129. The reversal of 1242124097 is 7904212421.

It is a happy number.

It is an a-pointer prime, because the next prime (1242124129) can be obtained adding 1242124097 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1239110401 + 3013696 = 35201^2 + 1736^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242124097 - 212 = 1242120001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242124007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621062048 + 621062049.

It is an arithmetic number, because the mean of its divisors is an integer number (621062049).

Almost surely, 21242124097 is an apocalyptic number.

It is an amenable number.

1242124097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242124097 is an equidigital number, since it uses as much as digits as its factorization.

1242124097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1242124097 is about 35243.7809691299. The cubic root of 1242124097 is about 1074.9501608767.

The spelling of 1242124097 in words is "one billion, two hundred forty-two million, one hundred twenty-four thousand, ninety-seven".