127420715 has 4 divisors (see below), whose sum is σ = 152904864. Its totient is φ = 101936568.

The previous prime is 127420681. The next prime is 127420753. The reversal of 127420715 is 517024721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127420715 - 2⁶ = 127420651 is a prime.

It is a super-2 number, since 2×127420715² = 32472077222222450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 12742067 + ... + 12742076.

It is an arithmetic number, because the mean of its divisors is an integer number (38226216).

Almost surely, 2^127420715 is an apocalyptic number.

127420715 is a deficient number, since it is larger than the sum of its proper divisors (25484149).

127420715 is an equidigital number, since it uses as much as digits as its factorization.

127420715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25484148.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 127420715 is about 11288.0784458649. The cubic root of 127420715 is about 503.2070062436.

The spelling of 127420715 in words is "one hundred twenty-seven million, four hundred twenty thousand, seven hundred fifteen".