127764001 has 4 divisors (see below), whose sum is σ = 130482432. Its totient is φ = 125045572.

The previous prime is 127763983. The next prime is 127764017. The reversal of 127764001 is 100467721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100467721 = 2399 ⋅41879.

It is a cyclic number.

It is not a de Polignac number, because 127764001 - 2¹⁷ = 127632929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127764601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1359145 + ... + 1359238.

It is an arithmetic number, because the mean of its divisors is an integer number (32620608).

Almost surely, 2^127764001 is an apocalyptic number.

It is an amenable number.

127764001 is a deficient number, since it is larger than the sum of its proper divisors (2718431).

127764001 is an equidigital number, since it uses as much as digits as its factorization.

127764001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718430.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 127764001 is about 11303.2739062627. The cubic root of 127764001 is about 503.6585001301.

The spelling of 127764001 in words is "one hundred twenty-seven million, seven hundred sixty-four thousand, one".