2542345 has 8 divisors (see below), whose sum is σ = 3285576. Its totient is φ = 1877376.

The previous prime is 2542327. The next prime is 2542363. The reversal of 2542345 is 5432452.

It is an interprime number because it is at equal distance from previous prime (2542327) and next prime (2542363).

It can be written as a sum of positive squares in 4 ways, for example, as 17424 + 2524921 = 132^2 + 1589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2542345 - 2¹³ = 2534153 is a prime.

It is a Duffinian number.

2542345 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19492 + ... + 19621.

It is an arithmetic number, because the mean of its divisors is an integer number (410697).

2^2542345 is an apocalyptic number.

It is an amenable number.

2542345 is a deficient number, since it is larger than the sum of its proper divisors (743231).

2542345 is a wasteful number, since it uses less digits than its factorization.

2542345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39131.

The product of its digits is 4800, while the sum is 25.

The square root of 2542345 is about 1594.4732672579. The cubic root of 2542345 is about 136.4828747630.

Adding to 2542345 its reverse (5432452), we get a palindrome (7974797).

The spelling of 2542345 in words is "two million, five hundred forty-two thousand, three hundred forty-five".