1254006121 has 2 divisors, whose sum is σ = 1254006122. Its totient is φ = 1254006120.

The previous prime is 1254006101. The next prime is 1254006133. The reversal of 1254006121 is 1216004521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104897600 + 149108521 = 33240^2 + 12211^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254006121 - 2¹⁹ = 1253481833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1254006092 and 1254006101.

It is not a weakly prime, because it can be changed into another prime (1254006101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627003060 + 627003061.

It is an arithmetic number, because the mean of its divisors is an integer number (627003061).

Almost surely, 2^1254006121 is an apocalyptic number.

It is an amenable number.

1254006121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254006121 is an equidigital number, since it uses as much as digits as its factorization.

1254006121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1254006121 is about 35411.9488449873. The cubic root of 1254006121 is about 1078.3669079530.

The spelling of 1254006121 in words is "one billion, two hundred fifty-four million, six thousand, one hundred twenty-one".