12478961 has 8 divisors (see below), whose sum is σ = 14083200. Its totient is φ = 10953040.

The previous prime is 12478943. The next prime is 12478979. The reversal of 12478961 is 16987421.

It is an interprime number because it is at equal distance from previous prime (12478943) and next prime (12478979).

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 12478961 - 2¹⁴ = 12462577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12478981) 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, 19241 + ... + 19878.

It is an arithmetic number, because the mean of its divisors is an integer number (1760400).

Almost surely, 2^12478961 is an apocalyptic number.

12478961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12478961 is a deficient number, since it is larger than the sum of its proper divisors (1604239).

12478961 is a wasteful number, since it uses less digits than its factorization.

12478961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39159.

The product of its digits is 24192, while the sum is 38.

The square root of 12478961 is about 3532.5572889905. The cubic root of 12478961 is about 231.9491627116.

The spelling of 12478961 in words is "twelve million, four hundred seventy-eight thousand, nine hundred sixty-one".