1179975487 has 4 divisors (see below), whose sum is σ = 1242079480. Its totient is φ = 1117871496.

The previous prime is 1179975469. The next prime is 1179975499. The reversal of 1179975487 is 7845799711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7845799711 = 1747 ⋅4491013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1179975487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1179975437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31051968 + ... + 31052005.

It is an arithmetic number, because the mean of its divisors is an integer number (310519870).

Almost surely, 2^1179975487 is an apocalyptic number.

1179975487 is a deficient number, since it is larger than the sum of its proper divisors (62103993).

1179975487 is an equidigital number, since it uses as much as digits as its factorization.

1179975487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62103992.

The product of its digits is 4445280, while the sum is 58.

The square root of 1179975487 is about 34350.7712722728. The cubic root of 1179975487 is about 1056.7144878573.

The spelling of 1179975487 in words is "one billion, one hundred seventy-nine million, nine hundred seventy-five thousand, four hundred eighty-seven".