120261253645 has 8 divisors (see below), whose sum is σ = 155414543256. Its totient is φ = 88808310336.

The previous prime is 120261253633. The next prime is 120261253667. The reversal of 120261253645 is 546352162021.

It can be written as a sum of positive squares in 4 ways, for example, as 30276 + 120261223369 = 174^2 + 346787^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 120261253645 - 2²⁵ = 120227699213 is a prime.

It is a super-3 number, since 3×120261253645³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925086502 + ... + 925086631.

It is an arithmetic number, because the mean of its divisors is an integer number (19426817907).

Almost surely, 2^120261253645 is an apocalyptic number.

It is an amenable number.

120261253645 is a deficient number, since it is larger than the sum of its proper divisors (35153289611).

120261253645 is a wasteful number, since it uses less digits than its factorization.

120261253645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850173151.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 120261253645 in words is "one hundred twenty billion, two hundred sixty-one million, two hundred fifty-three thousand, six hundred forty-five".