127086961 has 4 divisors (see below), whose sum is σ = 131469300. Its totient is φ = 122704624.

The previous prime is 127086959. The next prime is 127086997. The reversal of 127086961 is 169680721.

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 44622400 + 82464561 = 6680^2 + 9081^2 .

It is a cyclic number.

It is not a de Polignac number, because 127086961 - 2¹ = 127086959 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127086901) 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, 2191126 + ... + 2191183.

It is an arithmetic number, because the mean of its divisors is an integer number (32867325).

Almost surely, 2^127086961 is an apocalyptic number.

It is an amenable number.

127086961 is a deficient number, since it is larger than the sum of its proper divisors (4382339).

127086961 is an equidigital number, since it uses as much as digits as its factorization.

127086961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382338.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 127086961 is about 11273.2852798109. The cubic root of 127086961 is about 502.7672708360.

The spelling of 127086961 in words is "one hundred twenty-seven million, eighty-six thousand, nine hundred sixty-one".