12190757 has 4 divisors (see below), whose sum is σ = 12397440. Its totient is φ = 11984076.

The previous prime is 12190753. The next prime is 12190769. The reversal of 12190757 is 75709121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75709121 = 211 ⋅358811.

It is a cyclic number.

It is not a de Polignac number, because 12190757 - 2² = 12190753 is a prime.

It is a super-2 number, since 2×12190757² = 297229112466098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12190753) 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, 103253 + ... + 103370.

It is an arithmetic number, because the mean of its divisors is an integer number (3099360).

Almost surely, 2^12190757 is an apocalyptic number.

It is an amenable number.

12190757 is a deficient number, since it is larger than the sum of its proper divisors (206683).

12190757 is an equidigital number, since it uses as much as digits as its factorization.

12190757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206682.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 12190757 is about 3491.5264570099. The cubic root of 12190757 is about 230.1496002161.

Adding to 12190757 its reverse (75709121), we get a palindrome (87899878).

The spelling of 12190757 in words is "twelve million, one hundred ninety thousand, seven hundred fifty-seven".