1490071 has 4 divisors (see below), whose sum is σ = 1625544. Its totient is φ = 1354600.

The previous prime is 1490059. The next prime is 1490081. The reversal of 1490071 is 1700941.

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

It is a cyclic number.

It is not a de Polignac number, because 1490071 - 2⁵ = 1490039 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67720 + ... + 67741.

It is an arithmetic number, because the mean of its divisors is an integer number (406386).

2^1490071 is an apocalyptic number.

1490071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1490071 is a deficient number, since it is larger than the sum of its proper divisors (135473).

1490071 is a wasteful number, since it uses less digits than its factorization.

1490071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135472.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1490071 is about 1220.6846439601. The cubic root of 1490071 is about 114.2182900664.

The spelling of 1490071 in words is "one million, four hundred ninety thousand, seventy-one".