1151220419 has 2 divisors, whose sum is σ = 1151220420. Its totient is φ = 1151220418.

The previous prime is 1151220377. The next prime is 1151220437. The reversal of 1151220419 is 9140221511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1151220419 - 2¹² = 1151216323 is a prime.

It is a super-2 number, since 2×1151220419² = 2650616906245071122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1151220319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575610209 + 575610210.

It is an arithmetic number, because the mean of its divisors is an integer number (575610210).

Almost surely, 2^1151220419 is an apocalyptic number.

1151220419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151220419 is an equidigital number, since it uses as much as digits as its factorization.

1151220419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1151220419 is about 33929.6392406403. The cubic root of 1151220419 is about 1048.0600367074.

The spelling of 1151220419 in words is "one billion, one hundred fifty-one million, two hundred twenty thousand, four hundred nineteen".