230729451 has 4 divisors (see below), whose sum is σ = 307639272. Its totient is φ = 153819632.

The previous prime is 230729449. The next prime is 230729453. The reversal of 230729451 is 154927032.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (230729449) and next prime (230729453).

It is a cyclic number.

It is not a de Polignac number, because 230729451 - 2¹ = 230729449 is a prime.

It is a super-2 number, since 2×230729451² = 106472159117522802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230729453) 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, 38454906 + ... + 38454911.

It is an arithmetic number, because the mean of its divisors is an integer number (76909818).

Almost surely, 2^230729451 is an apocalyptic number.

230729451 is a deficient number, since it is larger than the sum of its proper divisors (76909821).

230729451 is an equidigital number, since it uses as much as digits as its factorization.

230729451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76909820.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 230729451 is about 15189.7811373305. The cubic root of 230729451 is about 613.3396074566.

It can be divided in two parts, 23072 and 9451, that added together give a palindrome (32523).

The spelling of 230729451 in words is "two hundred thirty million, seven hundred twenty-nine thousand, four hundred fifty-one".