127542040 has 16 divisors (see below), whose sum is σ = 286969680. Its totient is φ = 51016800.

The previous prime is 127542017. The next prime is 127542047. The reversal of 127542040 is 40245721.

It is a junction number, because it is equal to n+sod(n) for n = 127541996 and 127542014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127542047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1594236 + ... + 1594315.

It is an arithmetic number, because the mean of its divisors is an integer number (17935605).

Almost surely, 2^127542040 is an apocalyptic number.

127542040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127542040 is an abundant number, since it is smaller than the sum of its proper divisors (159427640).

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

127542040 is a wasteful number, since it uses less digits than its factorization.

127542040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188562 (or 3188558 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 127542040 is about 11293.4511996998. The cubic root of 127542040 is about 503.3666668956.

Adding to 127542040 its reverse (40245721), we get a palindrome (167787761).

The spelling of 127542040 in words is "one hundred twenty-seven million, five hundred forty-two thousand, forty".