245870041 has 4 divisors (see below), whose sum is σ = 248982400. Its totient is φ = 242757684.

The previous prime is 245870039. The next prime is 245870047. The reversal of 245870041 is 140078542.

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, and also an emirpimes, since its reverse is a distinct semiprime: 140078542 = 2 ⋅70039271.

It is a cyclic number.

It is not a de Polignac number, because 245870041 - 2¹ = 245870039 is a prime.

It is a super-2 number, since 2×245870041² = 120904154122683362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245869985 and 245870012.

It is not an unprimeable number, because it can be changed into a prime (245870047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556061 + ... + 1556218.

It is an arithmetic number, because the mean of its divisors is an integer number (62245600).

Almost surely, 2^245870041 is an apocalyptic number.

It is an amenable number.

245870041 is a deficient number, since it is larger than the sum of its proper divisors (3112359).

245870041 is an equidigital number, since it uses as much as digits as its factorization.

245870041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112358.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 245870041 is about 15680.2436524437. The cubic root of 245870041 is about 626.4722973415.

The spelling of 245870041 in words is "two hundred forty-five million, eight hundred seventy thousand, forty-one".