1523422231 has 4 divisors (see below), whose sum is σ = 1523500864. Its totient is φ = 1523343600.

The previous prime is 1523422217. The next prime is 1523422267. The reversal of 1523422231 is 1322243251.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1523422231 - 2¹⁵ = 1523389463 is a prime.

It is a super-2 number, since 2×1523422231² = 4641630587810034722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1523422196 and 1523422205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523422631) 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, 12571 + ... + 56611.

It is an arithmetic number, because the mean of its divisors is an integer number (380875216).

Almost surely, 2^1523422231 is an apocalyptic number.

1523422231 is a deficient number, since it is larger than the sum of its proper divisors (78633).

1523422231 is an equidigital number, since it uses as much as digits as its factorization.

1523422231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78632.

The product of its digits is 2880, while the sum is 25.

The square root of 1523422231 is about 39031.0418897574. The cubic root of 1523422231 is about 1150.6416660992.

Adding to 1523422231 its reverse (1322243251), we get a palindrome (2845665482).

The spelling of 1523422231 in words is "one billion, five hundred twenty-three million, four hundred twenty-two thousand, two hundred thirty-one".