1379575247 has 2 divisors, whose sum is σ = 1379575248. Its totient is φ = 1379575246.

The previous prime is 1379575217. The next prime is 1379575273. The reversal of 1379575247 is 7425759731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1379575247 - 2¹⁰ = 1379574223 is a prime.

It is a super-2 number, since 2×1379575247² = 3806455724270222018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1379575195 and 1379575204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1379575217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689787623 + 689787624.

It is an arithmetic number, because the mean of its divisors is an integer number (689787624).

Almost surely, 2^1379575247 is an apocalyptic number.

1379575247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379575247 is an equidigital number, since it uses as much as digits as its factorization.

1379575247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1852200, while the sum is 50.

The square root of 1379575247 is about 37142.6338188341. The cubic root of 1379575247 is about 1113.2220444554. Note that the first 3 decimals are identical.

The spelling of 1379575247 in words is "one billion, three hundred seventy-nine million, five hundred seventy-five thousand, two hundred forty-seven".