1234531 has 2 divisors, whose sum is σ = 1234532. Its totient is φ = 1234530.

The previous prime is 1234517. The next prime is 1234537. The reversal of 1234531 is 1354321.

It is a strong prime.

It is an emirp because it is prime and its reverse (1354321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1234531 - 2¹³ = 1226339 is a prime.

It is a super-2 number, since 2×1234531² = 3048133579922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1234499 and 1234508.

It is not a weakly prime, because it can be changed into another prime (1234537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617265 + 617266.

It is an arithmetic number, because the mean of its divisors is an integer number (617266).

2^1234531 is an apocalyptic number.

1234531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234531 is an equidigital number, since it uses as much as digits as its factorization.

1234531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 19.

The square root of 1234531 is about 1111.0945054315. The cubic root of 1234531 is about 107.2755294464.

Adding to 1234531 its reverse (1354321), we get a palindrome (2588852).

It can be divided in two parts, 12 and 34531, that added together give a palindrome (34543).

The spelling of 1234531 in words is "one million, two hundred thirty-four thousand, five hundred thirty-one".