12190501 has 4 divisors (see below), whose sum is σ = 12520012. Its totient is φ = 11860992.

The previous prime is 12190481. The next prime is 12190511. The reversal of 12190501 is 10509121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10509121 = 7 ⋅1501303.

It can be written as a sum of positive squares in 2 ways, for example, as 4622500 + 7568001 = 2150^2 + 2751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12190501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12190511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164700 + ... + 164773.

It is an arithmetic number, because the mean of its divisors is an integer number (3130003).

Almost surely, 2^12190501 is an apocalyptic number.

It is an amenable number.

12190501 is a deficient number, since it is larger than the sum of its proper divisors (329511).

12190501 is an equidigital number, since it uses as much as digits as its factorization.

12190501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329510.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 12190501 is about 3491.4897966341. The cubic root of 12190501 is about 230.1479891947.

Adding to 12190501 its reverse (10509121), we get a palindrome (22699622).

The spelling of 12190501 in words is "twelve million, one hundred ninety thousand, five hundred one".