1148884538 has 4 divisors (see below), whose sum is σ = 1723326810. Its totient is φ = 574442268.

The previous prime is 1148884519. The next prime is 1148884559. The reversal of 1148884538 is 8354888411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8354888411 = 19 ⋅439730969.

It can be written as a sum of positive squares in only one way, i.e., 1046328409 + 102556129 = 32347^2 + 10127^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287221133 + ... + 287221136.

Almost surely, 2^1148884538 is an apocalyptic number.

1148884538 is a deficient number, since it is larger than the sum of its proper divisors (574442272).

1148884538 is an equidigital number, since it uses as much as digits as its factorization.

1148884538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574442271.

The product of its digits is 983040, while the sum is 50.

The square root of 1148884538 is about 33895.1993355991. The cubic root of 1148884538 is about 1047.3507021742.

The spelling of 1148884538 in words is "one billion, one hundred forty-eight million, eight hundred eighty-four thousand, five hundred thirty-eight".