2145507 has 32 divisors (see below), whose sum is σ = 3655680. Its totient is φ = 1088640.

The previous prime is 2145497. The next prime is 2145529. The reversal of 2145507 is 7055412.

2145507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2145507 - 2⁶ = 2145443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7782 + ... + 8052.

It is an arithmetic number, because the mean of its divisors is an integer number (114240).

2^2145507 is an apocalyptic number.

2145507 is a deficient number, since it is larger than the sum of its proper divisors (1510173).

2145507 is a wasteful number, since it uses less digits than its factorization.

2145507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 2145507 is about 1464.7549283071. The cubic root of 2145507 is about 128.9763191914.

The spelling of 2145507 in words is "two million, one hundred forty-five thousand, five hundred seven".