1370 has 8 divisors (see below), whose sum is σ = 2484. Its totient is φ = 544.
The previous prime is 1367. The next prime is 1373. The reversal of 1370 is 731.
It is a Cunningham number, because it is equal to 372+1.
It is an interprime number because it is at equal distance from previous prime (1367) and next prime (1373).
It can be written as a sum of positive squares in 2 ways, for example, as 1369 + 1 = 37^2 + 1^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Curzon number.
It is a plaindrome in base 4 and base 16.
It is a nialpdrome in base 12.
It is a zygodrome in base 4.
It is not an unprimeable number, because it can be changed into a prime (1373) 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, 59 + ... + 78.
1370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1370 is a deficient number, since it is larger than the sum of its proper divisors (1114).
1370 is a wasteful number, since it uses less digits than its factorization.
1370 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 144.
The product of its (nonzero) digits is 21, while the sum is 11.
The square root of 1370 is about 37.0135110466. The cubic root of 1370 is about 11.1064054148.
The spelling of 1370 in words is "one thousand, three hundred seventy", and thus it is an iban number.
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