127830913 has 4 divisors (see below), whose sum is σ = 146092480. Its totient is φ = 109569348.

The previous prime is 127830889. The next prime is 127830991. The reversal of 127830913 is 319038721.

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: 319038721 = 10243 ⋅31147.

It is not a de Polignac number, because 127830913 - 2⁹ = 127830401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127833913) 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, 9130773 + ... + 9130786.

It is an arithmetic number, because the mean of its divisors is an integer number (36523120).

Almost surely, 2^127830913 is an apocalyptic number.

It is an amenable number.

127830913 is a deficient number, since it is larger than the sum of its proper divisors (18261567).

127830913 is an equidigital number, since it uses as much as digits as its factorization.

127830913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18261566.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 127830913 is about 11306.2333692526. The cubic root of 127830913 is about 503.7464093893.

The spelling of 127830913 in words is "one hundred twenty-seven million, eight hundred thirty thousand, nine hundred thirteen".