1342891 has 4 divisors (see below), whose sum is σ = 1464984. Its totient is φ = 1220800.

The previous prime is 1342883. The next prime is 1342897. The reversal of 1342891 is 1982431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1982431 = 11 ⋅180221.

It is a cyclic number.

It is not a de Polignac number, because 1342891 - 2³ = 1342883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342897) 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 3 ways as a sum of consecutive naturals, for example, 61030 + ... + 61051.

It is an arithmetic number, because the mean of its divisors is an integer number (366246).

2^1342891 is an apocalyptic number.

1342891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1342891 is a deficient number, since it is larger than the sum of its proper divisors (122093).

1342891 is a wasteful number, since it uses less digits than its factorization.

1342891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122092.

The product of its digits is 1728, while the sum is 28.

The square root of 1342891 is about 1158.8317392961. The cubic root of 1342891 is about 110.3266050627.

It can be divided in two parts, 134 and 2891, that added together give a square (3025 = 55²).

The spelling of 1342891 in words is "one million, three hundred forty-two thousand, eight hundred ninety-one".