2152947 has 16 divisors (see below), whose sum is σ = 3058560. Its totient is φ = 1343232.

The previous prime is 2152939. The next prime is 2152949. The reversal of 2152947 is 7492512.

It is not a de Polignac number, because 2152947 - 2³ = 2152939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2152949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5923 + ... + 6275.

It is an arithmetic number, because the mean of its divisors is an integer number (191160).

2^2152947 is an apocalyptic number.

2152947 is a deficient number, since it is larger than the sum of its proper divisors (905613).

2152947 is a wasteful number, since it uses less digits than its factorization.

2152947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its digits is 5040, while the sum is 30.

The square root of 2152947 is about 1467.2924043966. The cubic root of 2152947 is about 129.1252314314.

The spelling of 2152947 in words is "two million, one hundred fifty-two thousand, nine hundred forty-seven".