1547142 has 8 divisors (see below), whose sum is σ = 3094296. Its totient is φ = 515712.

The previous prime is 1547131. The next prime is 1547173. The reversal of 1547142 is 2417451.

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

1547142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128923 + ... + 128934.

It is an arithmetic number, because the mean of its divisors is an integer number (386787).

2^1547142 is an apocalyptic number.

1547142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1547142 is a wasteful number, since it uses less digits than its factorization.

1547142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257862.

The product of its digits is 1120, while the sum is 24.

The square root of 1547142 is about 1243.8416297905. The cubic root of 1547142 is about 115.6582789039.

The spelling of 1547142 in words is "one million, five hundred forty-seven thousand, one hundred forty-two".