19029121 has 2 divisors, whose sum is σ = 19029122. Its totient is φ = 19029120.

The previous prime is 19029113. The next prime is 19029151. The reversal of 19029121 is 12192091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9641025 + 9388096 = 3105^2 + 3064^2 .

It is a cyclic number.

It is not a de Polignac number, because 19029121 - 2³ = 19029113 is a prime.

It is not a weakly prime, because it can be changed into another prime (19029151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9514560 + 9514561.

It is an arithmetic number, because the mean of its divisors is an integer number (9514561).

Almost surely, 2^19029121 is an apocalyptic number.

It is an amenable number.

19029121 is a deficient number, since it is larger than the sum of its proper divisors (1).

19029121 is an equidigital number, since it uses as much as digits as its factorization.

19029121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 19029121 is about 4362.2380723661. The cubic root of 19029121 is about 266.9764225184.

The spelling of 19029121 in words is "nineteen million, twenty-nine thousand, one hundred twenty-one".