2151067 has 4 divisors (see below), whose sum is σ = 2154016. Its totient is φ = 2148120.

The previous prime is 2151031. The next prime is 2151073. The reversal of 2151067 is 7601512.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2151067 - 2¹⁵ = 2118299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (538504).

2^2151067 is an apocalyptic number.

2151067 is a deficient number, since it is larger than the sum of its proper divisors (2949).

2151067 is a wasteful number, since it uses less digits than its factorization.

2151067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2151067 is about 1466.6516287108. The cubic root of 2151067 is about 129.0876355022.

Adding to 2151067 its reverse (7601512), we get a palindrome (9752579).

The spelling of 2151067 in words is "two million, one hundred fifty-one thousand, sixty-seven".