276401496121 has 3 divisors (see below), whose sum is σ = 276402021861. Its totient is φ = 276400970382.

The previous prime is 276401496103. The next prime is 276401496143. The reversal of 276401496121 is 121694104672.

The square root of 276401496121 is 525739.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 276401496121 - 2⁹ = 276401495609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (276401496521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 262870 + ... + 788608.

It is an arithmetic number, because the mean of its divisors is an integer number (92134007287).

Almost surely, 2^276401496121 is an apocalyptic number.

276401496121 is the 525739-th square number.

276401496121 is the 262870-th centered octagonal number.

It is an amenable number.

276401496121 is a deficient number, since it is larger than the sum of its proper divisors (525740).

276401496121 is an frugal number, since it uses more digits than its factorization.

276401496121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051478 (or 525739 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 276401496121 in words is "two hundred seventy-six billion, four hundred one million, four hundred ninety-six thousand, one hundred twenty-one".