127120631 has 8 divisors (see below), whose sum is σ = 138835728. Its totient is φ = 115432000.

The previous prime is 127120627. The next prime is 127120639. The reversal of 127120631 is 136021721.

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

It is a cyclic number.

It is not a de Polignac number, because 127120631 - 2² = 127120627 is a prime.

It is a super-2 number, since 2×127120631² = 32319309651676322, 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 = 127120597 and 127120606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127120639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4211 + ... + 16491.

It is an arithmetic number, because the mean of its divisors is an integer number (17354466).

Almost surely, 2^127120631 is an apocalyptic number.

127120631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

127120631 is a deficient number, since it is larger than the sum of its proper divisors (11715097).

127120631 is a wasteful number, since it uses less digits than its factorization.

127120631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13233.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 127120631 is about 11274.7785344103. The cubic root of 127120631 is about 502.8116674159.

The spelling of 127120631 in words is "one hundred twenty-seven million, one hundred twenty thousand, six hundred thirty-one".