245154215011 has 4 divisors (see below), whose sum is σ = 245542732624. Its totient is φ = 244765697400.

The previous prime is 245154214993. The next prime is 245154215027. The reversal of 245154215011 is 110512451542.

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

It is a cyclic number.

It is not a de Polignac number, because 245154215011 - 2⁵ = 245154214979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245154015011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194257860 + ... + 194259121.

It is an arithmetic number, because the mean of its divisors is an integer number (61385683156).

Almost surely, 2^245154215011 is an apocalyptic number.

245154215011 is a deficient number, since it is larger than the sum of its proper divisors (388517613).

245154215011 is an equidigital number, since it uses as much as digits as its factorization.

245154215011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388517612.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 245154215011 its reverse (110512451542), we get a palindrome (355666666553).

The spelling of 245154215011 in words is "two hundred forty-five billion, one hundred fifty-four million, two hundred fifteen thousand, eleven".