245405041 has 4 divisors (see below), whose sum is σ = 280462912. Its totient is φ = 210347172.

The previous prime is 245405029. The next prime is 245405057. The reversal of 245405041 is 140504542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 245405041 - 2¹⁵ = 245372273 is a prime.

It is a super-4 number, since 4×245405041⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245404997 and 245405015.

It is not an unprimeable number, because it can be changed into a prime (245402041) 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, 17528925 + ... + 17528938.

It is an arithmetic number, because the mean of its divisors is an integer number (70115728).

Almost surely, 2^245405041 is an apocalyptic number.

It is an amenable number.

245405041 is a deficient number, since it is larger than the sum of its proper divisors (35057871).

245405041 is an equidigital number, since it uses as much as digits as its factorization.

245405041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35057870.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 245405041 is about 15665.4090594533. The cubic root of 245405041 is about 626.0771109847.

Adding to 245405041 its reverse (140504542), we get a palindrome (385909583).

The spelling of 245405041 in words is "two hundred forty-five million, four hundred five thousand, forty-one".