1342945 has 8 divisors (see below), whose sum is σ = 1618344. Its totient is φ = 1069824.

The previous prime is 1342909. The next prime is 1342963. The reversal of 1342945 is 5492431.

It can be written as a sum of positive squares in 4 ways, for example, as 50176 + 1292769 = 224^2 + 1137^2 .

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 1342945 - 2⁹ = 1342433 is a prime.

It is a Duffinian number.

1342945 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287 + ... + 2083.

It is an arithmetic number, because the mean of its divisors is an integer number (202293).

2^1342945 is an apocalyptic number.

It is an amenable number.

1342945 is a deficient number, since it is larger than the sum of its proper divisors (275399).

1342945 is an equidigital number, since it uses as much as digits as its factorization.

1342945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its digits is 4320, while the sum is 28.

The square root of 1342945 is about 1158.8550383892. The cubic root of 1342945 is about 110.3280838515.

The spelling of 1342945 in words is "one million, three hundred forty-two thousand, nine hundred forty-five".