230016551 has 2 divisors, whose sum is σ = 230016552. Its totient is φ = 230016550.

The previous prime is 230016547. The next prime is 230016557. The reversal of 230016551 is 155610032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230016551 - 2² = 230016547 is a prime.

It is a super-2 number, since 2×230016551² = 105815227467871202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230016557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115008275 + 115008276.

It is an arithmetic number, because the mean of its divisors is an integer number (115008276).

Almost surely, 2^230016551 is an apocalyptic number.

230016551 is a deficient number, since it is larger than the sum of its proper divisors (1).

230016551 is an equidigital number, since it uses as much as digits as its factorization.

230016551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 230016551 is about 15166.2965485975. The cubic root of 230016551 is about 612.7072638003.

Adding to 230016551 its reverse (155610032), we get a palindrome (385626583).

The spelling of 230016551 in words is "two hundred thirty million, sixteen thousand, five hundred fifty-one".