12609951 has 8 divisors (see below), whose sum is σ = 16980144. Its totient is φ = 8323200.

The previous prime is 12609931. The next prime is 12609953. The reversal of 12609951 is 15990621.

12609951 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12609951 - 2⁶ = 12609887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12609953) 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, 20506 + ... + 21111.

It is an arithmetic number, because the mean of its divisors is an integer number (2122518).

Almost surely, 2^12609951 is an apocalyptic number.

12609951 is a deficient number, since it is larger than the sum of its proper divisors (4370193).

12609951 is a wasteful number, since it uses less digits than its factorization.

12609951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41721.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 12609951 is about 3551.0492815505. The cubic root of 12609951 is about 232.7579193493.

It can be divided in two parts, 1260 and 9951, that added together give a palindrome (11211).

The spelling of 12609951 in words is "twelve million, six hundred nine thousand, nine hundred fifty-one".