245045401 has 4 divisors (see below), whose sum is σ = 246097332. Its totient is φ = 243993472.

The previous prime is 245045369. The next prime is 245045419. The reversal of 245045401 is 104540542.

It is a happy number.

245045401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129504400 + 115541001 = 11380^2 + 10749^2 .

It is a cyclic number.

It is not a de Polignac number, because 245045401 - 2⁵ = 245045369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245045431) 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, 525616 + ... + 526081.

It is an arithmetic number, because the mean of its divisors is an integer number (61524333).

Almost surely, 2^245045401 is an apocalyptic number.

It is an amenable number.

245045401 is a deficient number, since it is larger than the sum of its proper divisors (1051931).

245045401 is a wasteful number, since it uses less digits than its factorization.

245045401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051930.

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

The square root of 245045401 is about 15653.9260570631. The cubic root of 245045401 is about 625.7711237179.

Adding to 245045401 its reverse (104540542), we get a palindrome (349585943).

The spelling of 245045401 in words is "two hundred forty-five million, forty-five thousand, four hundred one".