1299974148 has 216 divisors, whose sum is σ = 3863277600. Its totient is φ = 367234560.

The previous prime is 1299974101. The next prime is 1299974171. The reversal of 1299974148 is 8414799921.

It is a junction number, because it is equal to n+sod(n) for n = 1299974094 and 1299974103.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 9352263 + ... + 9352401.

Almost surely, 2^1299974148 is an apocalyptic number.

1299974148 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 1299974148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1931638800).

1299974148 is an abundant number, since it is smaller than the sum of its proper divisors (2563303452).

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

1299974148 is a wasteful number, since it uses less digits than its factorization.

1299974148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 287 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 1299974148 is about 36055.1542501207. The cubic root of 1299974148 is about 1091.3856484776.

The spelling of 1299974148 in words is "one billion, two hundred ninety-nine million, nine hundred seventy-four thousand, one hundred forty-eight".