16121336 has 32 divisors (see below), whose sum is σ = 37687680. Its totient is φ = 6280800.

The previous prime is 16121311. The next prime is 16121341. The reversal of 16121336 is 63312161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12470 + ... + 13701.

It is an arithmetic number, because the mean of its divisors is an integer number (1177740).

Almost surely, 2^16121336 is an apocalyptic number.

It is an amenable number.

16121336 is an abundant number, since it is smaller than the sum of its proper divisors (21566344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16121336 is a wasteful number, since it uses less digits than its factorization.

16121336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26195 (or 26191 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 16121336 is about 4015.1383537806. The cubic root of 16121336 is about 252.6195806497.

Adding to 16121336 its reverse (63312161), we get a palindrome (79433497).

The spelling of 16121336 in words is "sixteen million, one hundred twenty-one thousand, three hundred thirty-six".