1188081234 has 12 divisors (see below), whose sum is σ = 2574176046. Its totient is φ = 396027072.

The previous prime is 1188081221. The next prime is 1188081247. The reversal of 1188081234 is 4321808811.

It is an interprime number because it is at equal distance from previous prime (1188081221) and next prime (1188081247).

It can be written as a sum of positive squares in only one way, i.e., 963171225 + 224910009 = 31035^2 + 14997^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33002239 + ... + 33002274.

Almost surely, 2^1188081234 is an apocalyptic number.

1188081234 is an abundant number, since it is smaller than the sum of its proper divisors (1386094812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1188081234 is a wasteful number, since it uses less digits than its factorization.

1188081234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66004521 (or 66004518 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 1188081234 is about 34468.5542777761. The cubic root of 1188081234 is about 1059.1286401416.

The spelling of 1188081234 in words is "one billion, one hundred eighty-eight million, eighty-one thousand, two hundred thirty-four".