1351994 has 16 divisors (see below), whose sum is σ = 2332800. Its totient is φ = 575664.

The previous prime is 1351991. The next prime is 1351997. The reversal of 1351994 is 4991531.

It is an interprime number because it is at equal distance from previous prime (1351991) and next prime (1351997).

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 1351994.

It is not an unprimeable number, because it can be changed into a prime (1351991) 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, 3587 + ... + 3945.

It is an arithmetic number, because the mean of its divisors is an integer number (145800).

2^1351994 is an apocalyptic number.

1351994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1351994 is a deficient number, since it is larger than the sum of its proper divisors (980806).

1351994 is a wasteful number, since it uses less digits than its factorization.

1351994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its digits is 4860, while the sum is 32.

The square root of 1351994 is about 1162.7527682186. The cubic root of 1351994 is about 110.5753327001.

The spelling of 1351994 in words is "one million, three hundred fifty-one thousand, nine hundred ninety-four".