1305142 has 8 divisors (see below), whose sum is σ = 1962936. Its totient is φ = 650832.

The previous prime is 1305137. The next prime is 1305149. The reversal of 1305142 is 2415031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (245367).

2^1305142 is an apocalyptic number.

1305142 is a deficient number, since it is larger than the sum of its proper divisors (657794).

1305142 is a wasteful number, since it uses less digits than its factorization.

1305142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1305142 is about 1142.4281159005. The cubic root of 1305142 is about 109.2829949546.

The spelling of 1305142 in words is "one million, three hundred five thousand, one hundred forty-two".