245181742522 has 12 divisors (see below), whose sum is σ = 388147828986. Its totient is φ = 116138719800.

The previous prime is 245181742513. The next prime is 245181742529. The reversal of 245181742522 is 225247181542.

245181742522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 126927600361 + 118254142161 = 356269^2 + 343881^2 .

It is a super-2 number, since 2×245181742522² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245181742529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169792729 + ... + 169794172.

Almost surely, 2^245181742522 is an apocalyptic number.

245181742522 is a deficient number, since it is larger than the sum of its proper divisors (142966086464).

245181742522 is a wasteful number, since it uses less digits than its factorization.

245181742522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339586941 (or 339586922 counting only the distinct ones).

The product of its digits is 358400, while the sum is 43.

The spelling of 245181742522 in words is "two hundred forty-five billion, one hundred eighty-one million, seven hundred forty-two thousand, five hundred twenty-two".