16121052 has 24 divisors (see below), whose sum is σ = 41795600. Its totient is φ = 5373648.

The previous prime is 16121051. The next prime is 16121057. The reversal of 16121052 is 25012161.

16121052 is a `hidden beast` number, since 1 + 612 + 1 + 0 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16121051) 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, 74527 + ... + 74742.

Almost surely, 2^16121052 is an apocalyptic number.

16121052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16121052 is an abundant number, since it is smaller than the sum of its proper divisors (25674548).

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

16121052 is a wasteful number, since it uses less digits than its factorization.

16121052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149282 (or 149274 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 16121052 is about 4015.1029874712. The cubic root of 16121052 is about 252.6180972246.

The spelling of 16121052 in words is "sixteen million, one hundred twenty-one thousand, fifty-two".