127563479 has 2 divisors, whose sum is σ = 127563480. Its totient is φ = 127563478.

The previous prime is 127563409. The next prime is 127563493. The reversal of 127563479 is 974365721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127563479 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127563409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63781739 + 63781740.

It is an arithmetic number, because the mean of its divisors is an integer number (63781740).

Almost surely, 2^127563479 is an apocalyptic number.

127563479 is a deficient number, since it is larger than the sum of its proper divisors (1).

127563479 is an equidigital number, since it uses as much as digits as its factorization.

127563479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 127563479 is about 11294.4003382207. The cubic root of 127563479 is about 503.3948695530.

The spelling of 127563479 in words is "one hundred twenty-seven million, five hundred sixty-three thousand, four hundred seventy-nine".