230651551 has 4 divisors (see below), whose sum is σ = 248393992. Its totient is φ = 212909112.

The previous prime is 230651543. The next prime is 230651557. The reversal of 230651551 is 155156032.

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

It is not a de Polignac number, because 230651551 - 2³ = 230651543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230651557) 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, 8871201 + ... + 8871226.

It is an arithmetic number, because the mean of its divisors is an integer number (62098498).

Almost surely, 2^230651551 is an apocalyptic number.

230651551 is a deficient number, since it is larger than the sum of its proper divisors (17742441).

230651551 is a wasteful number, since it uses less digits than its factorization.

230651551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17742440.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 230651551 is about 15187.2166969462. The cubic root of 230651551 is about 613.2705734525.

The spelling of 230651551 in words is "two hundred thirty million, six hundred fifty-one thousand, five hundred fifty-one".