2071551 has 8 divisors (see below), whose sum is σ = 2907520. Its totient is φ = 1308312.

The previous prime is 2071543. The next prime is 2071561. The reversal of 2071551 is 1551702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2071551 - 2³ = 2071543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18115 + ... + 18228.

It is an arithmetic number, because the mean of its divisors is an integer number (363440).

2^2071551 is an apocalyptic number.

2071551 is a deficient number, since it is larger than the sum of its proper divisors (835969).

2071551 is a wasteful number, since it uses less digits than its factorization.

2071551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36365.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 2071551 is about 1439.2883658253. The cubic root of 2071551 is about 127.4770123878.

The spelling of 2071551 in words is "two million, seventy-one thousand, five hundred fifty-one".