1219404029 has 2 divisors, whose sum is σ = 1219404030. Its totient is φ = 1219404028.

The previous prime is 1219404023. The next prime is 1219404071. The reversal of 1219404029 is 9204049121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 864948100 + 354455929 = 29410^2 + 18827^2 .

It is a cyclic number.

It is not a de Polignac number, because 1219404029 - 2¹⁶ = 1219338493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1219403986 and 1219404004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1219404023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609702014 + 609702015.

It is an arithmetic number, because the mean of its divisors is an integer number (609702015).

Almost surely, 2^1219404029 is an apocalyptic number.

It is an amenable number.

1219404029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219404029 is an equidigital number, since it uses as much as digits as its factorization.

1219404029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1219404029 is about 34919.9660509572. The cubic root of 1219404029 is about 1068.3557092597.

The spelling of 1219404029 in words is "one billion, two hundred nineteen million, four hundred four thousand, twenty-nine".