1270970 has 16 divisors (see below), whose sum is σ = 2305800. Its totient is φ = 504384.
The previous prime is 1270961. The next prime is 1270981. The reversal of 1270970 is 790721.
It can be written as a sum of positive squares in 4 ways, for example, as 426409 + 844561 = 653^2 + 919^2 .
It is a Curzon number.
It is a plaindrome in base 13.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064 + ... + 1916.
21270970 is an apocalyptic number.
1270970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1270970 is a deficient number, since it is larger than the sum of its proper divisors (1034830).
1270970 is a wasteful number, since it uses less digits than its factorization.
1270970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1009.
The product of its (nonzero) digits is 882, while the sum is 26.
The square root of 1270970 is about 1127.3730527203. The cubic root of 1270970 is about 108.3207769800.
Subtracting from 1270970 its reverse (790721), we obtain a square (480249 = 6932).
The spelling of 1270970 in words is "one million, two hundred seventy thousand, nine hundred seventy".
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