16212051 has 6 divisors (see below), whose sum is σ = 23417420. Its totient is φ = 10808028.

The previous prime is 16212047. The next prime is 16212061. The reversal of 16212051 is 15021261.

It is not a de Polignac number, because 16212051 - 2² = 16212047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16212061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 900661 + ... + 900678.

Almost surely, 2^16212051 is an apocalyptic number.

16212051 is a deficient number, since it is larger than the sum of its proper divisors (7205369).

16212051 is a wasteful number, since it uses less digits than its factorization.

16212051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801345 (or 1801342 counting only the distinct ones).

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

The square root of 16212051 is about 4026.4191287048. The cubic root of 16212051 is about 253.0925260581.

The spelling of 16212051 in words is "sixteen million, two hundred twelve thousand, fifty-one".