1148888273 has 32 divisors (see below), whose sum is σ = 1311357600. Its totient is φ = 999161856.

The previous prime is 1148888263. The next prime is 1148888291. The reversal of 1148888273 is 3728888411.

It can be written as a sum of positive squares in 16 ways, for example, as 607721104 + 541167169 = 24652^2 + 23263^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148888273 - 2¹⁶ = 1148822737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1148888263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3254465 + ... + 3254817.

It is an arithmetic number, because the mean of its divisors is an integer number (40979925).

Almost surely, 2^1148888273 is an apocalyptic number.

1148888273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1148888273 is a deficient number, since it is larger than the sum of its proper divisors (162469327).

1148888273 is a wasteful number, since it uses less digits than its factorization.

1148888273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581.

The product of its digits is 688128, while the sum is 50.

The square root of 1148888273 is about 33895.2544318523. The cubic root of 1148888273 is about 1047.3518371448.

The spelling of 1148888273 in words is "one billion, one hundred forty-eight million, eight hundred eighty-eight thousand, two hundred seventy-three".