1155550119 has 4 divisors (see below), whose sum is σ = 1540733496. Its totient is φ = 770366744.

The previous prime is 1155550117. The next prime is 1155550127. The reversal of 1155550119 is 9110555511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1155550119 - 2¹ = 1155550117 is a prime.

It is a super-2 number, since 2×1155550119² = 2670592155041828322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1155550119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155550117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192591684 + ... + 192591689.

It is an arithmetic number, because the mean of its divisors is an integer number (385183374).

Almost surely, 2^1155550119 is an apocalyptic number.

1155550119 is a deficient number, since it is larger than the sum of its proper divisors (385183377).

1155550119 is an equidigital number, since it uses as much as digits as its factorization.

1155550119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385183376.

The product of its (nonzero) digits is 5625, while the sum is 33.

The square root of 1155550119 is about 33993.3834591380. The cubic root of 1155550119 is about 1049.3722987511.

The spelling of 1155550119 in words is "one billion, one hundred fifty-five million, five hundred fifty thousand, one hundred nineteen".