12090357 has 8 divisors (see below), whose sum is σ = 17911680. Its totient is φ = 8060220.

The previous prime is 12090343. The next prime is 12090409. The reversal of 12090357 is 75309021.

It is not a de Polignac number, because 12090357 - 2⁷ = 12090229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 447791 = 12090357 / (1 + 2 + 0 + 9 + 0 + 3 + 5 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 12090357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12090557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223869 + ... + 223922.

It is an arithmetic number, because the mean of its divisors is an integer number (2238960).

Almost surely, 2^12090357 is an apocalyptic number.

It is an amenable number.

12090357 is a deficient number, since it is larger than the sum of its proper divisors (5821323).

12090357 is an equidigital number, since it uses as much as digits as its factorization.

12090357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447800 (or 447794 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 12090357 is about 3477.1190661236. The cubic root of 12090357 is about 229.5160397180.

Adding to 12090357 its reverse (75309021), we get a palindrome (87399378).

The spelling of 12090357 in words is "twelve million, ninety thousand, three hundred fifty-seven".