232123455 has 16 divisors (see below), whose sum is σ = 412664160. Its totient is φ = 123799104.

The previous prime is 232123447. The next prime is 232123469. The reversal of 232123455 is 554321232.

It is a happy number.

It is not a de Polignac number, because 232123455 - 2³ = 232123447 is a prime.

It is a super-2 number, since 2×232123455² = 107762596722274050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859582 + ... + 859851.

It is an arithmetic number, because the mean of its divisors is an integer number (25791510).

Almost surely, 2^232123455 is an apocalyptic number.

232123455 is a deficient number, since it is larger than the sum of its proper divisors (180540705).

232123455 is a wasteful number, since it uses less digits than its factorization.

232123455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719447 (or 1719441 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 232123455 is about 15235.5982816560. The cubic root of 232123455 is about 614.5723380152.

Adding to 232123455 its reverse (554321232), we get a palindrome (786444687).

The spelling of 232123455 in words is "two hundred thirty-two million, one hundred twenty-three thousand, four hundred fifty-five".