127421699 has 8 divisors (see below), whose sum is σ = 131045040. Its totient is φ = 123843616.

The previous prime is 127421689. The next prime is 127421713. The reversal of 127421699 is 996124721.

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

It is a de Polignac number, because none of the positive numbers 2^k-127421699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127421629) 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, 5564 + ... + 16905.

It is an arithmetic number, because the mean of its divisors is an integer number (16380630).

Almost surely, 2^127421699 is an apocalyptic number.

127421699 is a deficient number, since it is larger than the sum of its proper divisors (3623341).

127421699 is a wasteful number, since it uses less digits than its factorization.

127421699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22629.

The product of its digits is 54432, while the sum is 41.

The square root of 127421699 is about 11288.1220315870. The cubic root of 127421699 is about 503.2083015705.

It can be divided in two parts, 12742 and 1699, that added together give a palindrome (14441).

The spelling of 127421699 in words is "one hundred twenty-seven million, four hundred twenty-one thousand, six hundred ninety-nine".