1490531 has 12 divisors (see below), whose sum is σ = 1826280. Its totient is φ = 1209600.

The previous prime is 1490527. The next prime is 1490557. The reversal of 1490531 is 1350941.

It is a happy number.

It is not a de Polignac number, because 1490531 - 2² = 1490527 is a prime.

It is a super-2 number, since 2×1490531² = 4443365323922, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1490497 and 1490506.

It is not an unprimeable number, because it can be changed into a prime (1490591) 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 11 ways as a sum of consecutive naturals, for example, 131 + ... + 1731.

It is an arithmetic number, because the mean of its divisors is an integer number (152190).

2^1490531 is an apocalyptic number.

1490531 is a deficient number, since it is larger than the sum of its proper divisors (335749).

1490531 is a wasteful number, since it uses less digits than its factorization.

1490531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1627 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1490531 is about 1220.8730482732. The cubic root of 1490531 is about 114.2300423046.

The spelling of 1490531 in words is "one million, four hundred ninety thousand, five hundred thirty-one".