127215420 has 48 divisors (see below), whose sum is σ = 377159328. Its totient is φ = 31928320.

The previous prime is 127215419. The next prime is 127215427. The reversal of 127215420 is 24512721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127215427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61341 + ... + 63380.

It is an arithmetic number, because the mean of its divisors is an integer number (7857486).

Almost surely, 2^127215420 is an apocalyptic number.

127215420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127215420 is an abundant number, since it is smaller than the sum of its proper divisors (249943908).

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

127215420 is a wasteful number, since it uses less digits than its factorization.

127215420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124750 (or 124748 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 127215420 is about 11278.9813369825. The cubic root of 127215420 is about 502.9366121852.

The spelling of 127215420 in words is "one hundred twenty-seven million, two hundred fifteen thousand, four hundred twenty".