16121479 has 8 divisors (see below), whose sum is σ = 17660160. Its totient is φ = 14595000.

The previous prime is 16121471. The next prime is 16121509. The reversal of 16121479 is 97412161.

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 16121479 - 2³ = 16121471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16121479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16121471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159 + ... + 5680.

It is an arithmetic number, because the mean of its divisors is an integer number (2207520).

Almost surely, 2^16121479 is an apocalyptic number.

16121479 is a deficient number, since it is larger than the sum of its proper divisors (1538681).

16121479 is a wasteful number, since it uses less digits than its factorization.

16121479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101.

The product of its digits is 3024, while the sum is 31.

The square root of 16121479 is about 4015.1561613467. The cubic root of 16121479 is about 252.6203275790.

The spelling of 16121479 in words is "sixteen million, one hundred twenty-one thousand, four hundred seventy-nine".