1148521087 has 4 divisors (see below), whose sum is σ = 1312595536. Its totient is φ = 984446640.

The previous prime is 1148521067. The next prime is 1148521103. The reversal of 1148521087 is 7801258411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148521087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148521007) 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, 82037214 + ... + 82037227.

It is an arithmetic number, because the mean of its divisors is an integer number (328148884).

Almost surely, 2^1148521087 is an apocalyptic number.

1148521087 is a deficient number, since it is larger than the sum of its proper divisors (164074449).

1148521087 is an equidigital number, since it uses as much as digits as its factorization.

1148521087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164074448.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 1148521087 is about 33889.8375180525. The cubic root of 1148521087 is about 1047.2402469760.

Adding to 1148521087 its reverse (7801258411), we get a palindrome (8949779498).

The spelling of 1148521087 in words is "one billion, one hundred forty-eight million, five hundred twenty-one thousand, eighty-seven".