127338457 has 4 divisors (see below), whose sum is σ = 128465460. Its totient is φ = 126211456.

The previous prime is 127338443. The next prime is 127338479. The reversal of 127338457 is 754833721.

It is a happy number.

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 2547216 + 124791241 = 1596^2 + 11171^2 .

It is a cyclic number.

It is not a de Polignac number, because 127338457 - 2²³ = 118949849 is a prime.

It is a super-2 number, since 2×127338457² = 32430165262281698, which contains 22 as substring.

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 (127438457) 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, 563332 + ... + 563557.

It is an arithmetic number, because the mean of its divisors is an integer number (32116365).

Almost surely, 2^127338457 is an apocalyptic number.

It is an amenable number.

127338457 is a deficient number, since it is larger than the sum of its proper divisors (1127003).

127338457 is a wasteful number, since it uses less digits than its factorization.

127338457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127002.

The product of its digits is 141120, while the sum is 40.

The square root of 127338457 is about 11284.4342791298. The cubic root of 127338457 is about 503.0986991228.

The spelling of 127338457 in words is "one hundred twenty-seven million, three hundred thirty-eight thousand, four hundred fifty-seven".