1148987862 has 128 divisors (see below), whose sum is σ = 2986398720. Its totient is φ = 323896320.

The previous prime is 1148987809. The next prime is 1148987867. The reversal of 1148987862 is 2687898411.

1148987862 is a `hidden beast` number, since 1 + 1 + 489 + 87 + 86 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1148987799 and 1148987808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148987867) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 504358 + ... + 506630.

It is an arithmetic number, because the mean of its divisors is an integer number (23331240).

Almost surely, 2^1148987862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1148987862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493199360).

1148987862 is an abundant number, since it is smaller than the sum of its proper divisors (1837410858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1148987862 is a wasteful number, since it uses less digits than its factorization.

1148987862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355 (or 2349 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 1148987862 is about 33896.7234699757. The cubic root of 1148987862 is about 1047.3820987786.

It can be divided in two parts, 114898 and 7862, that added together give a triangular number (122760 = T₄₉₅).

The spelling of 1148987862 in words is "one billion, one hundred forty-eight million, nine hundred eighty-seven thousand, eight hundred sixty-two".