127345720 has 16 divisors (see below), whose sum is σ = 286527960. Its totient is φ = 50938272.

The previous prime is 127345667. The next prime is 127345723. The reversal of 127345720 is 27543721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127345723) 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, 1591782 + ... + 1591861.

Almost surely, 2^127345720 is an apocalyptic number.

127345720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127345720 is an abundant number, since it is smaller than the sum of its proper divisors (159182240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127345720 is a wasteful number, since it uses less digits than its factorization.

127345720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3183654 (or 3183650 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 127345720 is about 11284.7560895218. The cubic root of 127345720 is about 503.1082640164.

The spelling of 127345720 in words is "one hundred twenty-seven million, three hundred forty-five thousand, seven hundred twenty".