127564845 has 16 divisors (see below), whose sum is σ = 210688512. Its totient is φ = 65839680.

The previous prime is 127564813. The next prime is 127564861. The reversal of 127564845 is 548465721.

It is a happy number.

It is not a de Polignac number, because 127564845 - 2⁵ = 127564813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127564797 and 127564806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136702 + ... + 137631.

It is an arithmetic number, because the mean of its divisors is an integer number (13168032).

Almost surely, 2^127564845 is an apocalyptic number.

127564845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127564845 is a deficient number, since it is larger than the sum of its proper divisors (83123667).

127564845 is a wasteful number, since it uses less digits than its factorization.

127564845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274372.

The product of its digits is 268800, while the sum is 42.

The square root of 127564845 is about 11294.4608105035. The cubic root of 127564845 is about 503.3966663968.

The spelling of 127564845 in words is "one hundred twenty-seven million, five hundred sixty-four thousand, eight hundred forty-five".