230145621 has 8 divisors (see below), whose sum is σ = 306932640. Its totient is φ = 153394512.

The previous prime is 230145611. The next prime is 230145649. The reversal of 230145621 is 126541032.

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

It is not a de Polignac number, because 230145621 - 2⁷ = 230145493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230145591 and 230145600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230145611) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15570 + ... + 26508.

It is an arithmetic number, because the mean of its divisors is an integer number (38366580).

Almost surely, 2^230145621 is an apocalyptic number.

It is an amenable number.

230145621 is a deficient number, since it is larger than the sum of its proper divisors (76787019).

230145621 is a wasteful number, since it uses less digits than its factorization.

230145621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17955.

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

The square root of 230145621 is about 15170.5511106222. The cubic root of 230145621 is about 612.8218459016.

Adding to 230145621 its reverse (126541032), we get a palindrome (356686653).

The spelling of 230145621 in words is "two hundred thirty million, one hundred forty-five thousand, six hundred twenty-one".