1148212387 has 4 divisors (see below), whose sum is σ = 1312242736. Its totient is φ = 984182040.

The previous prime is 1148212381. The next prime is 1148212409. The reversal of 1148212387 is 7832128411.

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

It is a cyclic number.

It is not a de Polignac number, because 1148212387 - 2⁷ = 1148212259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1148212381) 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, 82015164 + ... + 82015177.

It is an arithmetic number, because the mean of its divisors is an integer number (328060684).

Almost surely, 2^1148212387 is an apocalyptic number.

1148212387 is a deficient number, since it is larger than the sum of its proper divisors (164030349).

1148212387 is an equidigital number, since it uses as much as digits as its factorization.

1148212387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164030348.

The product of its digits is 21504, while the sum is 37.

The square root of 1148212387 is about 33885.2827492999. The cubic root of 1148212387 is about 1047.1464126714.

The spelling of 1148212387 in words is "one billion, one hundred forty-eight million, two hundred twelve thousand, three hundred eighty-seven".