12140261 has 8 divisors (see below), whose sum is σ = 14690880. Its totient is φ = 9793728.

The previous prime is 12140257. The next prime is 12140269. The reversal of 12140261 is 16204121.

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

It is not a de Polignac number, because 12140261 - 2² = 12140257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140269) 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, 50891 + ... + 51128.

It is an arithmetic number, because the mean of its divisors is an integer number (1836360).

Almost surely, 2^12140261 is an apocalyptic number.

It is an amenable number.

12140261 is a deficient number, since it is larger than the sum of its proper divisors (2550619).

12140261 is a wasteful number, since it uses less digits than its factorization.

12140261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102043.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 12140261 is about 3484.2877320910. The cubic root of 12140261 is about 229.8313887099.

Adding to 12140261 its reverse (16204121), we get a palindrome (28344382).

The spelling of 12140261 in words is "twelve million, one hundred forty thousand, two hundred sixty-one".