2145342 has 16 divisors (see below), whose sum is σ = 4307472. Its totient is φ = 712320.

The previous prime is 2145337. The next prime is 2145343. The reversal of 2145342 is 2435412.

2145342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145343) 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 7 ways as a sum of consecutive naturals, for example, 1492 + ... + 2552.

It is an arithmetic number, because the mean of its divisors is an integer number (269217).

2^2145342 is an apocalyptic number.

2145342 is an abundant number, since it is smaller than the sum of its proper divisors (2162130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145342 is a wasteful number, since it uses less digits than its factorization.

2145342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403.

The product of its digits is 960, while the sum is 21.

The square root of 2145342 is about 1464.6986038090. The cubic root of 2145342 is about 128.9730128030.

The spelling of 2145342 in words is "two million, one hundred forty-five thousand, three hundred forty-two".