127045631 has 4 divisors (see below), whose sum is σ = 128473200. Its totient is φ = 125618064.

The previous prime is 127045627. The next prime is 127045643. The reversal of 127045631 is 136540721.

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

It is a cyclic number.

It is not a de Polignac number, because 127045631 - 2² = 127045627 is a prime.

It is a super-2 number, since 2×127045631² = 32281184712376322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127045594 and 127045603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127045621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713651 + ... + 713828.

It is an arithmetic number, because the mean of its divisors is an integer number (32118300).

Almost surely, 2^127045631 is an apocalyptic number.

127045631 is a deficient number, since it is larger than the sum of its proper divisors (1427569).

127045631 is an equidigital number, since it uses as much as digits as its factorization.

127045631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427568.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 127045631 is about 11271.4520360067. The cubic root of 127045631 is about 502.7127632136.

The spelling of 127045631 in words is "one hundred twenty-seven million, forty-five thousand, six hundred thirty-one".