361440121025 has 12 divisors (see below), whose sum is σ = 456642086652. Its totient is φ = 283696395840.

The previous prime is 361440120989. The next prime is 361440121051. The reversal of 361440121025 is 520121044163.

It can be written as a sum of positive squares in 6 ways, for example, as 27412762624 + 334027358401 = 165568^2 + 577951^2 .

It is not a de Polignac number, because 361440121025 - 2⁶ = 361440120961 is a prime.

It is a super-2 number, since 2×361440121025² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136391174 + ... + 136393823.

It is an arithmetic number, because the mean of its divisors is an integer number (38053507221).

Almost surely, 2^361440121025 is an apocalyptic number.

It is an amenable number.

361440121025 is a deficient number, since it is larger than the sum of its proper divisors (95201965627).

361440121025 is a wasteful number, since it uses less digits than its factorization.

361440121025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272785060 (or 272785055 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 361440121025 its reverse (520121044163), we get a palindrome (881561165188).

The spelling of 361440121025 in words is "three hundred sixty-one billion, four hundred forty million, one hundred twenty-one thousand, twenty-five".