1187212712 has 32 divisors (see below), whose sum is σ = 2654640000. Its totient is φ = 486682944.

The previous prime is 1187212709. The next prime is 1187212727. The reversal of 1187212712 is 2172127811.

It is a super-4 number, since 4×1187212712⁴ (a number of 37 digits) contains 4444 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459587 + ... + 462162.

It is an arithmetic number, because the mean of its divisors is an integer number (82957500).

Almost surely, 2^1187212712 is an apocalyptic number.

It is an amenable number.

1187212712 is an abundant number, since it is smaller than the sum of its proper divisors (1467427288).

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

1187212712 is a wasteful number, since it uses less digits than its factorization.

1187212712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921785 (or 921781 counting only the distinct ones).

The product of its digits is 3136, while the sum is 32.

The square root of 1187212712 is about 34455.9532156636. The cubic root of 1187212712 is about 1058.8704925948.

The spelling of 1187212712 in words is "one billion, one hundred eighty-seven million, two hundred twelve thousand, seven hundred twelve".