275251945 has 8 divisors (see below), whose sum is σ = 340957440. Its totient is φ = 213098160.

The previous prime is 275251943. The next prime is 275251957. The reversal of 275251945 is 549152572.

It is a happy number.

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

It is not a de Polignac number, because 275251945 - 2¹ = 275251943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275251898 and 275251907.

It is not an unprimeable number, because it can be changed into a prime (275251943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887755 + ... + 888064.

It is an arithmetic number, because the mean of its divisors is an integer number (42619680).

Almost surely, 2^275251945 is an apocalyptic number.

It is an amenable number.

275251945 is a deficient number, since it is larger than the sum of its proper divisors (65705495).

275251945 is a wasteful number, since it uses less digits than its factorization.

275251945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775855.

The product of its digits is 126000, while the sum is 40.

The square root of 275251945 is about 16590.7186402518. The cubic root of 275251945 is about 650.4942552404.

The spelling of 275251945 in words is "two hundred seventy-five million, two hundred fifty-one thousand, nine hundred forty-five".