245412043 has 4 divisors (see below), whose sum is σ = 246783240. Its totient is φ = 244040848.

The previous prime is 245412031. The next prime is 245412049. The reversal of 245412043 is 340214542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340214542 = 2 ⋅170107271.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245412043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245411999 and 245412017.

It is not an unprimeable number, because it can be changed into a prime (245412049) 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 3 ways as a sum of consecutive naturals, for example, 685330 + ... + 685687.

It is an arithmetic number, because the mean of its divisors is an integer number (61695810).

Almost surely, 2^245412043 is an apocalyptic number.

245412043 is a deficient number, since it is larger than the sum of its proper divisors (1371197).

245412043 is a wasteful number, since it uses less digits than its factorization.

245412043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371196.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 245412043 is about 15665.6325438841. The cubic root of 245412043 is about 626.0830654267.

Adding to 245412043 its reverse (340214542), we get a palindrome (585626585).

The spelling of 245412043 in words is "two hundred forty-five million, four hundred twelve thousand, forty-three".