1394945 has 8 divisors (see below), whose sum is σ = 1685544. Its totient is φ = 1108224.

The previous prime is 1394941. The next prime is 1394977. The reversal of 1394945 is 5494931.

It can be written as a sum of positive squares in 4 ways, for example, as 65536 + 1329409 = 256^2 + 1153^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1394945 - 2² = 1394941 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (210693).

2^1394945 is an apocalyptic number.

It is an amenable number.

1394945 is a deficient number, since it is larger than the sum of its proper divisors (290599).

1394945 is a wasteful number, since it uses less digits than its factorization.

1394945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939.

The product of its digits is 19440, while the sum is 35.

The square root of 1394945 is about 1181.0778975157. The cubic root of 1394945 is about 111.7340896260.

The spelling of 1394945 in words is "one million, three hundred ninety-four thousand, nine hundred forty-five".