23231522 has 8 divisors (see below), whose sum is σ = 35013072. Its totient is φ = 11560500.

The previous prime is 23231491. The next prime is 23231539. The reversal of 23231522 is 22513232.

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

It is a super-2 number, since 2×23231522² = 1079407228872968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23231494 and 23231503.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 27104 + ... + 27947.

It is an arithmetic number, because the mean of its divisors is an integer number (4376634).

Almost surely, 2^23231522 is an apocalyptic number.

23231522 is a deficient number, since it is larger than the sum of its proper divisors (11781550).

23231522 is a wasteful number, since it uses less digits than its factorization.

23231522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55264.

The product of its digits is 720, while the sum is 20.

The square root of 23231522 is about 4819.9089203013. The cubic root of 23231522 is about 285.3377426144.

Adding to 23231522 its reverse (22513232), we get a palindrome (45744754).

The spelling of 23231522 in words is "twenty-three million, two hundred thirty-one thousand, five hundred twenty-two".