12140455 has 8 divisors (see below), whose sum is σ = 14620032. Its totient is φ = 9678048.

The previous prime is 12140441. The next prime is 12140459. The reversal of 12140455 is 55404121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12140455 - 2⁹ = 12139943 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 (12140459) 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, 2679 + ... + 5608.

It is an arithmetic number, because the mean of its divisors is an integer number (1827504).

Almost surely, 2^12140455 is an apocalyptic number.

12140455 is a deficient number, since it is larger than the sum of its proper divisors (2479577).

12140455 is an equidigital number, since it uses as much as digits as its factorization.

12140455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8585.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 12140455 is about 3484.3155712421. The cubic root of 12140455 is about 229.8326129299.

Adding to 12140455 its reverse (55404121), we get a palindrome (67544576).

The spelling of 12140455 in words is "twelve million, one hundred forty thousand, four hundred fifty-five".