1187412488 has 16 divisors (see below), whose sum is σ = 2239270380. Its totient is φ = 590273728.

The previous prime is 1187412487. The next prime is 1187412493. The reversal of 1187412488 is 8842147811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1070729284 + 116683204 = 32722^2 + 10802^2 .

It is not an unprimeable number, because it can be changed into a prime (1187412487) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 427595 + ... + 430362.

Almost surely, 2^1187412488 is an apocalyptic number.

It is an amenable number.

1187412488 is a deficient number, since it is larger than the sum of its proper divisors (1051857892).

1187412488 is a wasteful number, since it uses less digits than its factorization.

1187412488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858136 (or 858132 counting only the distinct ones).

The product of its digits is 114688, while the sum is 44.

The square root of 1187412488 is about 34458.8520992792. The cubic root of 1187412488 is about 1058.9298824146.

The spelling of 1187412488 in words is "one billion, one hundred eighty-seven million, four hundred twelve thousand, four hundred eighty-eight".