2125786 has 8 divisors (see below), whose sum is σ = 3434004. Its totient is φ = 981120.

The previous prime is 2125771. The next prime is 2125793. The reversal of 2125786 is 6875212.

It can be written as a sum of positive squares in 2 ways, for example, as 2013561 + 112225 = 1419^2 + 335^2 .

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

It is a super-2 number, since 2×2125786² = 9037932235592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40855 + ... + 40906.

2^2125786 is an apocalyptic number.

2125786 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2125786 is a deficient number, since it is larger than the sum of its proper divisors (1308218).

2125786 is a wasteful number, since it uses less digits than its factorization.

2125786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81776.

The product of its digits is 6720, while the sum is 31.

The square root of 2125786 is about 1458.0075445621. The cubic root of 2125786 is about 128.5799287737.

The spelling of 2125786 in words is "two million, one hundred twenty-five thousand, seven hundred eighty-six".