1248137748 has 360 divisors, whose sum is σ = 4037411840. Its totient is φ = 333590400.

The previous prime is 1248137747. The next prime is 1248137777. The reversal of 1248137748 is 8477318421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248137747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 15799173 + ... + 15799251.

Almost surely, 2^1248137748 is an apocalyptic number.

1248137748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1248137748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2018705920).

1248137748 is an abundant number, since it is smaller than the sum of its proper divisors (2789274092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1248137748 is a wasteful number, since it uses less digits than its factorization.

1248137748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 139 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 1248137748 is about 35328.9930227285. The cubic root of 1248137748 is about 1076.6821324330.

The spelling of 1248137748 in words is "one billion, two hundred forty-eight million, one hundred thirty-seven thousand, seven hundred forty-eight".