276945157 has 8 divisors (see below), whose sum is σ = 287985240. Its totient is φ = 266004480.

The previous prime is 276945133. The next prime is 276945169. The reversal of 276945157 is 751549672.

It can be written as a sum of positive squares in 4 ways, for example, as 1185921 + 275759236 = 1089^2 + 16606^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276945157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276945107) 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, 19144 + ... + 30337.

It is an arithmetic number, because the mean of its divisors is an integer number (35998155).

Almost surely, 2^276945157 is an apocalyptic number.

It is an amenable number.

276945157 is a deficient number, since it is larger than the sum of its proper divisors (11040083).

276945157 is a wasteful number, since it uses less digits than its factorization.

276945157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49703.

The product of its digits is 529200, while the sum is 46.

The square root of 276945157 is about 16641.6692972790. The cubic root of 276945157 is about 651.8253677173.

The spelling of 276945157 in words is "two hundred seventy-six million, nine hundred forty-five thousand, one hundred fifty-seven".