1490855 has 4 divisors (see below), whose sum is σ = 1789032. Its totient is φ = 1192680.

The previous prime is 1490843. The next prime is 1490869. The reversal of 1490855 is 5580941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5580941 = 281 ⋅19861.

It is a de Polignac number, because none of the positive numbers 2^k-1490855 is a prime.

It is a Duffinian 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, 149081 + ... + 149090.

It is an arithmetic number, because the mean of its divisors is an integer number (447258).

2^1490855 is an apocalyptic number.

1490855 is a deficient number, since it is larger than the sum of its proper divisors (298177).

1490855 is an equidigital number, since it uses as much as digits as its factorization.

1490855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298176.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 1490855 is about 1221.0057329923. The cubic root of 1490855 is about 114.2383185167.

The spelling of 1490855 in words is "one million, four hundred ninety thousand, eight hundred fifty-five".