12142355 has 16 divisors (see below), whose sum is σ = 15186528. Its totient is φ = 9312000.

The previous prime is 12142337. The next prime is 12142357. The reversal of 12142355 is 55324121.

12142355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12142355 - 2¹⁶ = 12076819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12142355.

It is not an unprimeable number, because it can be changed into a prime (12142357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12020 + ... + 12990.

It is an arithmetic number, because the mean of its divisors is an integer number (949158).

Almost surely, 2^12142355 is an apocalyptic number.

12142355 is a deficient number, since it is larger than the sum of its proper divisors (3044173).

12142355 is an equidigital number, since it uses as much as digits as its factorization.

12142355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078.

The product of its digits is 1200, while the sum is 23.

The square root of 12142355 is about 3484.5882109655. The cubic root of 12142355 is about 229.8446020244.

Adding to 12142355 its reverse (55324121), we get a palindrome (67466476).

The spelling of 12142355 in words is "twelve million, one hundred forty-two thousand, three hundred fifty-five".