230778481 has 4 divisors (see below), whose sum is σ = 240812352. Its totient is φ = 220744612.

The previous prime is 230778479. The next prime is 230778511. The reversal of 230778481 is 184877032.

230778481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230778481 - 2¹ = 230778479 is a prime.

It is a super-2 number, since 2×230778481² = 106517414585334722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230778421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5016901 + ... + 5016946.

It is an arithmetic number, because the mean of its divisors is an integer number (60203088).

Almost surely, 2^230778481 is an apocalyptic number.

It is an amenable number.

230778481 is a deficient number, since it is larger than the sum of its proper divisors (10033871).

230778481 is a wasteful number, since it uses less digits than its factorization.

230778481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10033870.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 230778481 is about 15191.3949655718. The cubic root of 230778481 is about 613.3830492611.

The spelling of 230778481 in words is "two hundred thirty million, seven hundred seventy-eight thousand, four hundred eighty-one".