13009951 has 8 divisors (see below), whose sum is σ = 13772880. Its totient is φ = 12268032.

The previous prime is 13009949. The next prime is 13009961. The reversal of 13009951 is 15990031.

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 13009951 - 2¹ = 13009949 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 (13009901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3970 + ... + 6463.

It is an arithmetic number, because the mean of its divisors is an integer number (1721610).

Almost surely, 2^13009951 is an apocalyptic number.

13009951 is a deficient number, since it is larger than the sum of its proper divisors (762929).

13009951 is a wasteful number, since it uses less digits than its factorization.

13009951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 13009951 is about 3606.9309669025. The cubic root of 13009951 is about 235.1934486795.

Adding to 13009951 its reverse (15990031), we get a palindrome (28999982).

The spelling of 13009951 in words is "thirteen million, nine thousand, nine hundred fifty-one".