127535641 has 2 divisors, whose sum is σ = 127535642. Its totient is φ = 127535640.

The previous prime is 127535627. The next prime is 127535647. The reversal of 127535641 is 146535721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115777600 + 11758041 = 10760^2 + 3429^2 .

It is an emirp because it is prime and its reverse (146535721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127535641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127535597 and 127535606.

It is not a weakly prime, because it can be changed into another prime (127535647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63767820 + 63767821.

It is an arithmetic number, because the mean of its divisors is an integer number (63767821).

Almost surely, 2^127535641 is an apocalyptic number.

It is an amenable number.

127535641 is a deficient number, since it is larger than the sum of its proper divisors (1).

127535641 is an equidigital number, since it uses as much as digits as its factorization.

127535641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 34.

The square root of 127535641 is about 11293.1678903663. The cubic root of 127535641 is about 503.3582485023.

The spelling of 127535641 in words is "one hundred twenty-seven million, five hundred thirty-five thousand, six hundred forty-one".