1342905 has 8 divisors (see below), whose sum is σ = 2148672. Its totient is φ = 716208.

The previous prime is 1342897. The next prime is 1342907. The reversal of 1342905 is 5092431.

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

It is not a de Polignac number, because 1342905 - 2³ = 1342897 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1342907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44749 + ... + 44778.

It is an arithmetic number, because the mean of its divisors is an integer number (268584).

2^1342905 is an apocalyptic number.

1342905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1342905 is a deficient number, since it is larger than the sum of its proper divisors (805767).

1342905 is an equidigital number, since it uses as much as digits as its factorization.

1342905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89535.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1342905 is about 1158.8377798467. The cubic root of 1342905 is about 110.3269884562.

The spelling of 1342905 in words is "one million, three hundred forty-two thousand, nine hundred five".