1481857 has 4 divisors (see below), whose sum is σ = 1595860. Its totient is φ = 1367856.

The previous prime is 1481849. The next prime is 1481881. The reversal of 1481857 is 7581841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 848241 + 633616 = 921^2 + 796^2 .

It is a cyclic number.

It is not a de Polignac number, because 1481857 - 2³ = 1481849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1481897) 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, 56982 + ... + 57007.

It is an arithmetic number, because the mean of its divisors is an integer number (398965).

2^1481857 is an apocalyptic number.

It is an amenable number.

1481857 is a deficient number, since it is larger than the sum of its proper divisors (114003).

1481857 is a wasteful number, since it uses less digits than its factorization.

1481857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114002.

The product of its digits is 8960, while the sum is 34.

The square root of 1481857 is about 1217.3154890989. The cubic root of 1481857 is about 114.0080275459.

The spelling of 1481857 in words is "one million, four hundred eighty-one thousand, eight hundred fifty-seven".