744100121 has 2 divisors, whose sum is σ = 744100122. Its totient is φ = 744100120.

The previous prime is 744100073. The next prime is 744100127. The reversal of 744100121 is 121001447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 677040400 + 67059721 = 26020^2 + 8189^2 .

It is a cyclic number.

It is not a de Polignac number, because 744100121 - 2¹⁴ = 744083737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 744100093 and 744100102.

It is not a weakly prime, because it can be changed into another prime (744100127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372050060 + 372050061.

It is an arithmetic number, because the mean of its divisors is an integer number (372050061).

Almost surely, 2^744100121 is an apocalyptic number.

It is an amenable number.

744100121 is a deficient number, since it is larger than the sum of its proper divisors (1).

744100121 is an equidigital number, since it uses as much as digits as its factorization.

744100121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 744100121 is about 27278.1986392064. The cubic root of 744100121 is about 906.1716237823.

Adding to 744100121 its reverse (121001447), we get a palindrome (865101568).

The spelling of 744100121 in words is "seven hundred forty-four million, one hundred thousand, one hundred twenty-one".