276457013 has 4 divisors (see below), whose sum is σ = 315950880. Its totient is φ = 236963148.

The previous prime is 276457001. The next prime is 276457021. The reversal of 276457013 is 310754672.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276457013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276427013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19746923 + ... + 19746936.

It is an arithmetic number, because the mean of its divisors is an integer number (78987720).

Almost surely, 2^276457013 is an apocalyptic number.

It is an amenable number.

276457013 is a deficient number, since it is larger than the sum of its proper divisors (39493867).

276457013 is an equidigital number, since it uses as much as digits as its factorization.

276457013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39493866.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 276457013 is about 16626.9965116975. The cubic root of 276457013 is about 651.4421729923.

The spelling of 276457013 in words is "two hundred seventy-six million, four hundred fifty-seven thousand, thirteen".