1148249912 has 8 divisors (see below), whose sum is σ = 2152968600. Its totient is φ = 574124952.

The previous prime is 1148249891. The next prime is 1148249981. The reversal of 1148249912 is 2199428411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1148249912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71765612 + ... + 71765627.

It is an arithmetic number, because the mean of its divisors is an integer number (269121075).

Almost surely, 2^1148249912 is an apocalyptic number.

It is an amenable number.

1148249912 is a deficient number, since it is larger than the sum of its proper divisors (1004718688).

1148249912 is a wasteful number, since it uses less digits than its factorization.

1148249912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143531245 (or 143531241 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 1148249912 is about 33885.8364512373. The cubic root of 1148249912 is about 1047.1578198935.

The spelling of 1148249912 in words is "one billion, one hundred forty-eight million, two hundred forty-nine thousand, nine hundred twelve".