12190520 has 16 divisors (see below), whose sum is σ = 27428760. Its totient is φ = 4876192.

The previous prime is 12190517. The next prime is 12190537. The reversal of 12190520 is 2509121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12190492 and 12190501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152342 + ... + 152421.

Almost surely, 2^12190520 is an apocalyptic number.

12190520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12190520 is an abundant number, since it is smaller than the sum of its proper divisors (15238240).

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

12190520 is a wasteful number, since it uses less digits than its factorization.

12190520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304774 (or 304770 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 12190520 is about 3491.4925175346. The cubic root of 12190520 is about 230.1481087635.

Adding to 12190520 its reverse (2509121), we get a palindrome (14699641).

The spelling of 12190520 in words is "twelve million, one hundred ninety thousand, five hundred twenty".