1298169612 has 36 divisors (see below), whose sum is σ = 3366595960. Its totient is φ = 432598392.

The previous prime is 1298169571. The next prime is 1298169619. The reversal of 1298169612 is 2169618921.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1298169612 is a `hidden beast` number, since 1 + 29 + 8 + 1 + 6 + 9 + 612 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1298169619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372703 + ... + 376169.

Almost surely, 2^1298169612 is an apocalyptic number.

1298169612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1298169612 is an abundant number, since it is smaller than the sum of its proper divisors (2068426348).

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

1298169612 is an frugal number, since it uses more digits than its factorization.

1298169612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6947 (or 3472 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 1298169612 is about 36030.1208990478. The cubic root of 1298169612 is about 1090.8804187691.

The spelling of 1298169612 in words is "one billion, two hundred ninety-eight million, one hundred sixty-nine thousand, six hundred twelve".