1223241531 has 8 divisors (see below), whose sum is σ = 1637757264. Its totient is φ = 812110080.

The previous prime is 1223241473. The next prime is 1223241541. The reversal of 1223241531 is 1351423221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223241531 - 2⁷ = 1223241403 is a prime.

It is a super-2 number, since 2×1223241531² = 2992639686326447922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223241541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845226 + ... + 846671.

It is an arithmetic number, because the mean of its divisors is an integer number (204719658).

Almost surely, 2^1223241531 is an apocalyptic number.

1223241531 is a deficient number, since it is larger than the sum of its proper divisors (414515733).

1223241531 is a wasteful number, since it uses less digits than its factorization.

1223241531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692141.

The product of its digits is 1440, while the sum is 24.

The square root of 1223241531 is about 34974.8699926104. The cubic root of 1223241531 is about 1069.4752517648.

Adding to 1223241531 its reverse (1351423221), we get a palindrome (2574664752).

The spelling of 1223241531 in words is "one billion, two hundred twenty-three million, two hundred forty-one thousand, five hundred thirty-one".