127399345 has 4 divisors (see below), whose sum is σ = 152879220. Its totient is φ = 101919472.

The previous prime is 127399339. The next prime is 127399357. The reversal of 127399345 is 543993721.

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 41873841 + 85525504 = 6471^2 + 9248^2 .

It is a cyclic number.

It is not a de Polignac number, because 127399345 - 2²¹ = 125302193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12739930 + ... + 12739939.

It is an arithmetic number, because the mean of its divisors is an integer number (38219805).

Almost surely, 2^127399345 is an apocalyptic number.

It is an amenable number.

127399345 is a deficient number, since it is larger than the sum of its proper divisors (25479875).

127399345 is an equidigital number, since it uses as much as digits as its factorization.

127399345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25479874.

The product of its digits is 204120, while the sum is 43.

The square root of 127399345 is about 11287.1318323124. The cubic root of 127399345 is about 503.1788733639.

The spelling of 127399345 in words is "one hundred twenty-seven million, three hundred ninety-nine thousand, three hundred forty-five".