1489531 has 2 divisors, whose sum is σ = 1489532. Its totient is φ = 1489530.

The previous prime is 1489529. The next prime is 1489541. The reversal of 1489531 is 1359841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1489531 - 2¹ = 1489529 is a prime.

It is a super-2 number, since 2×1489531² = 4437405199922, which contains 22 as substring.

Together with 1489529, it forms a pair of twin primes.

It is a Chen prime.

1489531 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1489493 and 1489502.

It is not a weakly prime, because it can be changed into another prime (1489511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744765 + 744766.

It is an arithmetic number, because the mean of its divisors is an integer number (744766).

2^1489531 is an apocalyptic number.

1489531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1489531 is an equidigital number, since it uses as much as digits as its factorization.

1489531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 1489531 is about 1220.4634365683. The cubic root of 1489531 is about 114.2044908741.

The spelling of 1489531 in words is "one million, four hundred eighty-nine thousand, five hundred thirty-one".