12661354 has 8 divisors (see below), whose sum is σ = 19027008. Its totient is φ = 6319020.

The previous prime is 12661321. The next prime is 12661357. The reversal of 12661354 is 45316621.

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

It is a super-2 number, since 2×12661354² = 320619770226632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12661357) 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, 4402 + ... + 6685.

It is an arithmetic number, because the mean of its divisors is an integer number (2378376).

Almost surely, 2^12661354 is an apocalyptic number.

12661354 is a deficient number, since it is larger than the sum of its proper divisors (6365654).

12661354 is a wasteful number, since it uses less digits than its factorization.

12661354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11660.

The product of its digits is 4320, while the sum is 28.

The square root of 12661354 is about 3558.2796405004. The cubic root of 12661354 is about 233.0737607777.

Adding to 12661354 its reverse (45316621), we get a palindrome (57977975).

The spelling of 12661354 in words is "twelve million, six hundred sixty-one thousand, three hundred fifty-four".