127545001 has 2 divisors, whose sum is σ = 127545002. Its totient is φ = 127545000.

The previous prime is 127544993. The next prime is 127545007. The reversal of 127545001 is 100545721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64818601 + 62726400 = 8051^2 + 7920^2 .

It is an emirp because it is prime and its reverse (100545721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127545001 - 2³ = 127544993 is a prime.

It is not a weakly prime, because it can be changed into another prime (127545007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63772500 + 63772501.

It is an arithmetic number, because the mean of its divisors is an integer number (63772501).

Almost surely, 2^127545001 is an apocalyptic number.

It is an amenable number.

127545001 is a deficient number, since it is larger than the sum of its proper divisors (1).

127545001 is an equidigital number, since it uses as much as digits as its factorization.

127545001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 127545001 is about 11293.5822926120. The cubic root of 127545001 is about 503.3705622313.

The spelling of 127545001 in words is "one hundred twenty-seven million, five hundred forty-five thousand, one".