2152743 has 4 divisors (see below), whose sum is σ = 2870328. Its totient is φ = 1435160.

The previous prime is 2152739. The next prime is 2152753. The reversal of 2152743 is 3472512.

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 2152743 - 2² = 2152739 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152753) 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, 358788 + ... + 358793.

It is an arithmetic number, because the mean of its divisors is an integer number (717582).

2^2152743 is an apocalyptic number.

2152743 is a deficient number, since it is larger than the sum of its proper divisors (717585).

2152743 is an equidigital number, since it uses as much as digits as its factorization.

2152743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717584.

The product of its digits is 1680, while the sum is 24.

The square root of 2152743 is about 1467.2228869534. Note that the first 3 decimals coincide. The cubic root of 2152743 is about 129.1211529320.

The spelling of 2152743 in words is "two million, one hundred fifty-two thousand, seven hundred forty-three".