2066151 has 4 divisors (see below), whose sum is σ = 2754872. Its totient is φ = 1377432.

The previous prime is 2066149. The next prime is 2066153. The reversal of 2066151 is 1516602.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2066149) and next prime (2066153).

It is not a de Polignac number, because 2066151 - 2¹ = 2066149 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066153) 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, 344356 + ... + 344361.

It is an arithmetic number, because the mean of its divisors is an integer number (688718).

2^2066151 is an apocalyptic number.

2066151 is a deficient number, since it is larger than the sum of its proper divisors (688721).

2066151 is an equidigital number, since it uses as much as digits as its factorization.

2066151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688720.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2066151 is about 1437.4112146494. The cubic root of 2066151 is about 127.3661494202.

The spelling of 2066151 in words is "two million, sixty-six thousand, one hundred fifty-one".