275129245249 has 8 divisors (see below), whose sum is σ = 275985151232. Its totient is φ = 274273488720.

The previous prime is 275129245243. The next prime is 275129245253. The reversal of 275129245249 is 942542921572.

It is a happy number.

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 275129245249 - 2¹¹ = 275129243201 is a prime.

It is a super-2 number, since 2×275129245249² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 275129245196 and 275129245205.

It is not an unprimeable number, because it can be changed into a prime (275129245243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4502032 + ... + 4562734.

It is an arithmetic number, because the mean of its divisors is an integer number (34498143904).

Almost surely, 2^275129245249 is an apocalyptic number.

It is an amenable number.

275129245249 is a deficient number, since it is larger than the sum of its proper divisors (855905983).

275129245249 is a wasteful number, since it uses less digits than its factorization.

275129245249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74727.

The product of its digits is 3628800, while the sum is 52.

The spelling of 275129245249 in words is "two hundred seventy-five billion, one hundred twenty-nine million, two hundred forty-five thousand, two hundred forty-nine".