2135747 has 4 divisors (see below), whose sum is σ = 2139696. Its totient is φ = 2131800.

The previous prime is 2135743. The next prime is 2135753. The reversal of 2135747 is 7475312.

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

It is a cyclic number.

It is not a de Polignac number, because 2135747 - 2² = 2135743 is a prime.

It is a super-2 number, since 2×2135747² = 9122830496018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2135743) 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, 1004 + ... + 2297.

It is an arithmetic number, because the mean of its divisors is an integer number (534924).

2^2135747 is an apocalyptic number.

2135747 is a deficient number, since it is larger than the sum of its proper divisors (3949).

2135747 is an equidigital number, since it uses as much as digits as its factorization.

2135747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948.

The product of its digits is 5880, while the sum is 29.

The square root of 2135747 is about 1461.4195154027. The cubic root of 2135747 is about 128.7804490147.

It can be divided in two parts, 2135 and 747, that added together give a palindrome (2882).

The spelling of 2135747 in words is "two million, one hundred thirty-five thousand, seven hundred forty-seven".