2132705 has 4 divisors (see below), whose sum is σ = 2559252. Its totient is φ = 1706160.

The previous prime is 2132699. The next prime is 2132749. The reversal of 2132705 is 5072312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 929296 + 1203409 = 964^2 + 1097^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2132705 is a prime.

It is a Duffinian number.

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, 213266 + ... + 213275.

It is an arithmetic number, because the mean of its divisors is an integer number (639813).

2^2132705 is an apocalyptic number.

It is an amenable number.

2132705 is a deficient number, since it is larger than the sum of its proper divisors (426547).

2132705 is an equidigital number, since it uses as much as digits as its factorization.

2132705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426546.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2132705 is about 1460.3783756274. The cubic root of 2132705 is about 128.7192781822.

The spelling of 2132705 in words is "two million, one hundred thirty-two thousand, seven hundred five".