12699000 has 192 divisors, whose sum is σ = 45995040. Its totient is φ = 3148800.

The previous prime is 12698999. The next prime is 12699023. The reversal of 12699000 is 99621.

It is a happy number.

It is a super-2 number, since 2×12699000² = 322529202000000, which contains 22 as substring.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 152959 + ... + 153041.

Almost surely, 2^12699000 is an apocalyptic number.

12699000 is a gapful number since it is divisible by the number (10) 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 12699000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22997520).

12699000 is an abundant number, since it is smaller than the sum of its proper divisors (33296040).

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

12699000 is a wasteful number, since it uses less digits than its factorization.

12699000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 12699000 is about 3563.5656300958. The cubic root of 12699000 is about 233.3045315924.

The spelling of 12699000 in words is "twelve million, six hundred ninety-nine thousand".