245127405 has 32 divisors (see below), whose sum is σ = 404118144. Its totient is φ = 126786816.

The previous prime is 245127373. The next prime is 245127409. The reversal of 245127405 is 504721542.

It is not a de Polignac number, because 245127405 - 2⁵ = 245127373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245127409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245367 + ... + 246363.

It is an arithmetic number, because the mean of its divisors is an integer number (12628692).

Almost surely, 2^245127405 is an apocalyptic number.

It is an amenable number.

245127405 is a deficient number, since it is larger than the sum of its proper divisors (158990739).

245127405 is a wasteful number, since it uses less digits than its factorization.

245127405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 245127405 is about 15656.5451169790. The cubic root of 245127405 is about 625.8409203240.

Adding to 245127405 its reverse (504721542), we get a palindrome (749848947).

The spelling of 245127405 in words is "two hundred forty-five million, one hundred twenty-seven thousand, four hundred five".