127722545 has 8 divisors (see below), whose sum is σ = 153838440. Its totient is φ = 101797120.

The previous prime is 127722533. The next prime is 127722563. The reversal of 127722545 is 545227721.

It can be written as a sum of positive squares in 4 ways, for example, as 11751184 + 115971361 = 3428^2 + 10769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127722545 - 2⁶ = 127722481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46136 + ... + 48825.

It is an arithmetic number, because the mean of its divisors is an integer number (19229805).

Almost surely, 2^127722545 is an apocalyptic number.

It is an amenable number.

127722545 is a deficient number, since it is larger than the sum of its proper divisors (26115895).

127722545 is an equidigital number, since it uses as much as digits as its factorization.

127722545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95235.

The product of its digits is 39200, while the sum is 35.

The square root of 127722545 is about 11301.4399525016. The cubic root of 127722545 is about 503.6040196679.

The spelling of 127722545 in words is "one hundred twenty-seven million, seven hundred twenty-two thousand, five hundred forty-five".