245125123105 has 8 divisors (see below), whose sum is σ = 295643296872. Its totient is φ = 195104665728.

The previous prime is 245125123049. The next prime is 245125123193. The reversal of 245125123105 is 501321521542.

It can be written as a sum of positive squares in 4 ways, for example, as 96962486544 + 148162636561 = 311388^2 + 384919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245125123105 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124428012 + ... + 124429981.

It is an arithmetic number, because the mean of its divisors is an integer number (36955412109).

Almost surely, 2^245125123105 is an apocalyptic number.

It is an amenable number.

245125123105 is a deficient number, since it is larger than the sum of its proper divisors (50518173767).

245125123105 is a wasteful number, since it uses less digits than its factorization.

245125123105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248858195.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 245125123105 its reverse (501321521542), we get a palindrome (746446644647).

The spelling of 245125123105 in words is "two hundred forty-five billion, one hundred twenty-five million, one hundred twenty-three thousand, one hundred five".