245120142055 has 4 divisors (see below), whose sum is σ = 294144170472. Its totient is φ = 196096113640.

The previous prime is 245120142053. The next prime is 245120142089. The reversal of 245120142055 is 550241021542.

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

It is not a de Polignac number, because 245120142055 - 2¹ = 245120142053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245120142053) 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, 24512014201 + ... + 24512014210.

It is an arithmetic number, because the mean of its divisors is an integer number (73536042618).

Almost surely, 2^245120142055 is an apocalyptic number.

245120142055 is a deficient number, since it is larger than the sum of its proper divisors (49024028417).

245120142055 is an equidigital number, since it uses as much as digits as its factorization.

245120142055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49024028416.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 245120142055 its reverse (550241021542), we get a palindrome (795361163597).

The spelling of 245120142055 in words is "two hundred forty-five billion, one hundred twenty million, one hundred forty-two thousand, fifty-five".