1281534 has 8 divisors (see below), whose sum is σ = 2563080. Its totient is φ = 427176.

The previous prime is 1281523. The next prime is 1281541. The reversal of 1281534 is 4351821.

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

1281534 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, 106789 + ... + 106800.

It is an arithmetic number, because the mean of its divisors is an integer number (320385).

2^1281534 is an apocalyptic number.

1281534 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.

1281534 is a wasteful number, since it uses less digits than its factorization.

1281534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213594.

The product of its digits is 960, while the sum is 24.

The square root of 1281534 is about 1132.0485855298. The cubic root of 1281534 is about 108.6200614798.

The spelling of 1281534 in words is "one million, two hundred eighty-one thousand, five hundred thirty-four".