2512861 has 6 divisors (see below), whose sum is σ = 2721210. Its totient is φ = 2319408.

The previous prime is 2512847. The next prime is 2512897. The reversal of 2512861 is 1682152.

It can be written as a sum of positive squares in 3 ways, for example, as 47961 + 2464900 = 219^2 + 1570^2 .

It is not a de Polignac number, because 2512861 - 2¹³ = 2504669 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 (2512801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7266 + ... + 7603.

It is an arithmetic number, because the mean of its divisors is an integer number (453535).

2^2512861 is an apocalyptic number.

It is an amenable number.

2512861 is a deficient number, since it is larger than the sum of its proper divisors (208349).

2512861 is a wasteful number, since it uses less digits than its factorization.

2512861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14895 (or 14882 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 2512861 is about 1585.2006182184. The cubic root of 2512861 is about 135.9532170404.

The spelling of 2512861 in words is "two million, five hundred twelve thousand, eight hundred sixty-one".