127552969 has 4 divisors (see below), whose sum is σ = 128200644. Its totient is φ = 126905296.

The previous prime is 127552967. The next prime is 127552979. The reversal of 127552969 is 969255721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105575625 + 21977344 = 10275^2 + 4688^2 .

It is a cyclic number.

It is not a de Polignac number, because 127552969 - 2¹ = 127552967 is a prime.

It is a super-2 number, since 2×127552969² = 32539519801429922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127552961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323542 + ... + 323935.

It is an arithmetic number, because the mean of its divisors is an integer number (32050161).

Almost surely, 2^127552969 is an apocalyptic number.

It is an amenable number.

127552969 is a deficient number, since it is larger than the sum of its proper divisors (647675).

127552969 is an equidigital number, since it uses as much as digits as its factorization.

127552969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647674.

The product of its digits is 340200, while the sum is 46.

The square root of 127552969 is about 11293.9350538242. The cubic root of 127552969 is about 503.3810442130.

The spelling of 127552969 in words is "one hundred twenty-seven million, five hundred fifty-two thousand, nine hundred sixty-nine".