1248111478 has 8 divisors (see below), whose sum is σ = 1872984960. Its totient is φ = 623783160.

The previous prime is 1248111467. The next prime is 1248111479. The reversal of 1248111478 is 8741118421.

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

It is a super-4 number, since 4×1248111478⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248111479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130518 + ... + 139753.

It is an arithmetic number, because the mean of its divisors is an integer number (234123120).

Almost surely, 2^1248111478 is an apocalyptic number.

1248111478 is a deficient number, since it is larger than the sum of its proper divisors (624873482).

1248111478 is a wasteful number, since it uses less digits than its factorization.

1248111478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272582.

The product of its digits is 14336, while the sum is 37.

The square root of 1248111478 is about 35328.6212298187. The cubic root of 1248111478 is about 1076.6745786091.

Adding to 1248111478 its reverse (8741118421), we get a palindrome (9989229899).

The spelling of 1248111478 in words is "one billion, two hundred forty-eight million, one hundred eleven thousand, four hundred seventy-eight".