1155551422 has 16 divisors (see below), whose sum is σ = 1759251312. Its totient is φ = 569194560.

The previous prime is 1155551399. The next prime is 1155551461. The reversal of 1155551422 is 2241555511.

It is a super-3 number, since 3×1155551422³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23818 + ... + 53650.

It is an arithmetic number, because the mean of its divisors is an integer number (109953207).

Almost surely, 2^1155551422 is an apocalyptic number.

1155551422 is a deficient number, since it is larger than the sum of its proper divisors (603699890).

1155551422 is a wasteful number, since it uses less digits than its factorization.

1155551422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30123.

The product of its digits is 10000, while the sum is 31.

The square root of 1155551422 is about 33993.4026246270. The cubic root of 1155551422 is about 1049.3726931756.

The spelling of 1155551422 in words is "one billion, one hundred fifty-five million, five hundred fifty-one thousand, four hundred twenty-two".