12190500 has 240 divisors, whose sum is σ = 46510464. Its totient is φ = 2721600.

The previous prime is 12190481. The next prime is 12190511. The reversal of 12190500 is 509121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 5.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 283479 + ... + 283521.

Almost surely, 2^12190500 is an apocalyptic number.

12190500 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 12190500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23255232).

12190500 is an abundant number, since it is smaller than the sum of its proper divisors (34319964).

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

12190500 is a wasteful number, since it uses less digits than its factorization.

12190500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 12190500 is about 3491.4896534287. The cubic root of 12190500 is about 230.1479829016.

Adding to 12190500 its reverse (509121), we get a palindrome (12699621).

The spelling of 12190500 in words is "twelve million, one hundred ninety thousand, five hundred".