2972145 has 16 divisors (see below), whose sum is σ = 5188032. Its totient is φ = 1440960.

The previous prime is 2972141. The next prime is 2972149. The reversal of 2972145 is 5412792.

It is an interprime number because it is at equal distance from previous prime (2972141) and next prime (2972149).

It is not a de Polignac number, because 2972145 - 2² = 2972141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2972141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8842 + ... + 9171.

It is an arithmetic number, because the mean of its divisors is an integer number (324252).

2^2972145 is an apocalyptic number.

It is an amenable number.

2972145 is a deficient number, since it is larger than the sum of its proper divisors (2215887).

2972145 is a wasteful number, since it uses less digits than its factorization.

2972145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18032.

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

The square root of 2972145 is about 1723.9910092573. The cubic root of 2972145 is about 143.7771920834. Note that the first 3 decimals are identical.

It can be divided in two parts, 297 and 2145, that added together give a palindrome (2442).

The spelling of 2972145 in words is "two million, nine hundred seventy-two thousand, one hundred forty-five".