230121537 has 16 divisors (see below), whose sum is σ = 333660672. Its totient is φ = 140486400.

The previous prime is 230121523. The next prime is 230121613. The reversal of 230121537 is 735121032.

It is not a de Polignac number, because 230121537 - 2¹¹ = 230119489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230121137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59089 + ... + 62862.

It is an arithmetic number, because the mean of its divisors is an integer number (20853792).

Almost surely, 2^230121537 is an apocalyptic number.

It is an amenable number.

230121537 is a deficient number, since it is larger than the sum of its proper divisors (103539135).

230121537 is a wasteful number, since it uses less digits than its factorization.

230121537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122008.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 230121537 is about 15169.7573151320. The cubic root of 230121537 is about 612.8004685434.

Adding to 230121537 its reverse (735121032), we get a palindrome (965242569).

The spelling of 230121537 in words is "two hundred thirty million, one hundred twenty-one thousand, five hundred thirty-seven".