1105155243 has 6 divisors (see below), whose sum is σ = 1596335364. Its totient is φ = 736770156.

The previous prime is 1105155217. The next prime is 1105155263. The reversal of 1105155243 is 3425515011.

1105155243 is a `hidden beast` number, since 1 + 105 + 1 + 552 + 4 + 3 = 666.

It is not a de Polignac number, because 1105155243 - 2⁸ = 1105154987 is a prime.

It is a super-2 number, since 2×1105155243² = 2442736222260778098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1105155203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61397505 + ... + 61397522.

It is an arithmetic number, because the mean of its divisors is an integer number (266055894).

Almost surely, 2^1105155243 is an apocalyptic number.

1105155243 is a deficient number, since it is larger than the sum of its proper divisors (491180121).

1105155243 is a wasteful number, since it uses less digits than its factorization.

1105155243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122795033 (or 122795030 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1105155243 is about 33243.8752704916. The cubic root of 1105155243 is about 1033.8902254429.

The spelling of 1105155243 in words is "one billion, one hundred five million, one hundred fifty-five thousand, two hundred forty-three".