275145979 has 8 divisors (see below), whose sum is σ = 279208512. Its totient is φ = 271091520.

The previous prime is 275145961. The next prime is 275145989. The reversal of 275145979 is 979541572.

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 275145979 - 2²¹ = 273048827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275145989) 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, 114369 + ... + 116749.

It is an arithmetic number, because the mean of its divisors is an integer number (34901064).

Almost surely, 2^275145979 is an apocalyptic number.

275145979 is a deficient number, since it is larger than the sum of its proper divisors (4062533).

275145979 is a wasteful number, since it uses less digits than its factorization.

275145979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037.

The product of its digits is 793800, while the sum is 49.

The square root of 275145979 is about 16587.5248002829. The cubic root of 275145979 is about 650.4107691555.

The spelling of 275145979 in words is "two hundred seventy-five million, one hundred forty-five thousand, nine hundred seventy-nine".