1426531 has 4 divisors (see below), whose sum is σ = 1433152. Its totient is φ = 1419912.

The previous prime is 1426519. The next prime is 1426541. The reversal of 1426531 is 1356241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1356241 = 23 ⋅58967.

It is a cyclic number.

It is not a de Polignac number, because 1426531 - 2⁵ = 1426499 is a prime.

It is a super-2 number, since 2×1426531² = 4069981387922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (1426511) 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, 2976 + ... + 3421.

It is an arithmetic number, because the mean of its divisors is an integer number (358288).

2^1426531 is an apocalyptic number.

1426531 is a deficient number, since it is larger than the sum of its proper divisors (6621).

1426531 is an equidigital number, since it uses as much as digits as its factorization.

1426531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620.

The product of its digits is 720, while the sum is 22.

The square root of 1426531 is about 1194.3747318158. The cubic root of 1426531 is about 112.5711418337.

The spelling of 1426531 in words is "one million, four hundred twenty-six thousand, five hundred thirty-one".