127742825 has 24 divisors (see below), whose sum is σ = 187279680. Its totient is φ = 84571200.

The previous prime is 127742821. The next prime is 127742831. The reversal of 127742825 is 528247721.

It is not a de Polignac number, because 127742825 - 2² = 127742821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127742821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7511 + ... + 17660.

It is an arithmetic number, because the mean of its divisors is an integer number (7803320).

Almost surely, 2^127742825 is an apocalyptic number.

It is an amenable number.

127742825 is a deficient number, since it is larger than the sum of its proper divisors (59536855).

127742825 is a wasteful number, since it uses less digits than its factorization.

127742825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25217 (or 25212 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 127742825 is about 11302.3371476876. The cubic root of 127742825 is about 503.6306726210.

The spelling of 127742825 in words is "one hundred twenty-seven million, seven hundred forty-two thousand, eight hundred twenty-five".