1187613412 has 12 divisors (see below), whose sum is σ = 2081472316. Its totient is φ = 592907040.

The previous prime is 1187613367. The next prime is 1187613433. The reversal of 1187613412 is 2143167811.

It can be written as a sum of positive squares in 2 ways, for example, as 1022336676 + 165276736 = 31974^2 + 12856^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221943 + ... + 227230.

Almost surely, 2^1187613412 is an apocalyptic number.

It is an amenable number.

1187613412 is a deficient number, since it is larger than the sum of its proper divisors (893858904).

1187613412 is a wasteful number, since it uses less digits than its factorization.

1187613412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449838 (or 449836 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 1187613412 is about 34461.7673951874. The cubic root of 1187613412 is about 1058.9896067958.

The spelling of 1187613412 in words is "one billion, one hundred eighty-seven million, six hundred thirteen thousand, four hundred twelve".