230621185 has 8 divisors (see below), whose sum is σ = 284225256. Its totient is φ = 179510400.

The previous prime is 230621159. The next prime is 230621189. The reversal of 230621185 is 581126032.

It can be written as a sum of positive squares in 4 ways, for example, as 59351616 + 171269569 = 7704^2 + 13087^2 .

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

It is not a de Polignac number, because 230621185 - 2¹⁵ = 230588417 is a prime.

It is a super-2 number, since 2×230621185² = 106372261941608450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230621189) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 623116 + ... + 623485.

It is an arithmetic number, because the mean of its divisors is an integer number (35528157).

It is a Proth number, since it is equal to 3519 ⋅ 2¹⁶ + 1 and 3519 < 2¹⁶.

Almost surely, 2^230621185 is an apocalyptic number.

It is an amenable number.

230621185 is a deficient number, since it is larger than the sum of its proper divisors (53604071).

230621185 is a wasteful number, since it uses less digits than its factorization.

230621185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246643.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 230621185 is about 15186.2169416876. The cubic root of 230621185 is about 613.2436592733.

The spelling of 230621185 in words is "two hundred thirty million, six hundred twenty-one thousand, one hundred eighty-five".