153423421 has 8 divisors (see below), whose sum is σ = 154454400. Its totient is φ = 152396160.

The previous prime is 153423407. The next prime is 153423437. The reversal of 153423421 is 124324351.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153423421 is a prime.

It is a super-2 number, since 2×153423421² = 47077492222686482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153423481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164685 + ... + 165613.

It is an arithmetic number, because the mean of its divisors is an integer number (19306800).

Almost surely, 2^153423421 is an apocalyptic number.

It is an amenable number.

153423421 is a deficient number, since it is larger than the sum of its proper divisors (1030979).

153423421 is an equidigital number, since it uses as much as digits as its factorization.

153423421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

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

The square root of 153423421 is about 12386.4208308938. The cubic root of 153423421 is about 535.3410594977.

Adding to 153423421 its reverse (124324351), we get a palindrome (277747772).

The spelling of 153423421 in words is "one hundred fifty-three million, four hundred twenty-three thousand, four hundred twenty-one".