1088138249 has 8 divisors (see below), whose sum is σ = 1187891040. Its totient is φ = 988524000.

The previous prime is 1088138213. The next prime is 1088138267. The reversal of 1088138249 is 9428318801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1088138249 - 2²⁴ = 1071361033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1088138449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17852 + ... + 49949.

It is an arithmetic number, because the mean of its divisors is an integer number (148486380).

Almost surely, 2^1088138249 is an apocalyptic number.

It is an amenable number.

1088138249 is a deficient number, since it is larger than the sum of its proper divisors (99752791).

1088138249 is a wasteful number, since it uses less digits than its factorization.

1088138249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69271.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 1088138249 is about 32986.9405826003. The cubic root of 1088138249 is about 1028.5561977894.

The spelling of 1088138249 in words is "one billion, eighty-eight million, one hundred thirty-eight thousand, two hundred forty-nine".