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127442135 = 545675581
BaseRepresentation
bin1111001100010…
…01110011010111
322212210201202002
413212021303113
5230111122020
620351305515
73105145262
oct746116327
9285721662
10127442135
1165a35187
123681b29b
1320531462
1412cd5cd9
15b2c5975
hex7989cd7

127442135 has 8 divisors (see below), whose sum is σ = 152991456. Its totient is φ = 101913120.

The previous prime is 127442129. The next prime is 127442137. The reversal of 127442135 is 531244721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127442135 - 26 = 127442071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127442098 and 127442107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127442137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20045 + ... + 25625.

It is an arithmetic number, because the mean of its divisors is an integer number (19123932).

Almost surely, 2127442135 is an apocalyptic number.

127442135 is a deficient number, since it is larger than the sum of its proper divisors (25549321).

127442135 is an equidigital number, since it uses as much as digits as its factorization.

127442135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10153.

The product of its digits is 6720, while the sum is 29.

The square root of 127442135 is about 11289.0271945815. The cubic root of 127442135 is about 503.2352017903.

Adding to 127442135 its reverse (531244721), we get a palindrome (658686856).

The spelling of 127442135 in words is "one hundred twenty-seven million, four hundred forty-two thousand, one hundred thirty-five".

Divisors: 1 5 4567 5581 22835 27905 25488427 127442135