127797945 has 32 divisors (see below), whose sum is σ = 224363520. Its totient is φ = 61602240.

The previous prime is 127797931. The next prime is 127797947. The reversal of 127797945 is 549797721.

It is not a de Polignac number, because 127797945 - 2¹² = 127793849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (127797947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27372 + ... + 31698.

It is an arithmetic number, because the mean of its divisors is an integer number (7011360).

Almost surely, 2^127797945 is an apocalyptic number.

127797945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127797945 is a deficient number, since it is larger than the sum of its proper divisors (96565575).

127797945 is a wasteful number, since it uses less digits than its factorization.

127797945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525.

The product of its digits is 1111320, while the sum is 51.

The square root of 127797945 is about 11304.7753184219. The cubic root of 127797945 is about 503.7030997309.

The spelling of 127797945 in words is "one hundred twenty-seven million, seven hundred ninety-seven thousand, nine hundred forty-five".