230172220537 has 8 divisors (see below), whose sum is σ = 264974069376. Its totient is φ = 195850397472.

The previous prime is 230172220529. The next prime is 230172220637. The reversal of 230172220537 is 735022271032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230172220537 - 2³ = 230172220529 is a prime.

It is a super-2 number, since 2×230172220537² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230172220037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120005413 + ... + 120007330.

It is an arithmetic number, because the mean of its divisors is an integer number (33121758672).

Almost surely, 2^230172220537 is an apocalyptic number.

It is an amenable number.

230172220537 is a deficient number, since it is larger than the sum of its proper divisors (34801848839).

230172220537 is a wasteful number, since it uses less digits than its factorization.

230172220537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240012887.

The product of its (nonzero) digits is 35280, while the sum is 34.

Adding to 230172220537 its reverse (735022271032), we get a palindrome (965194491569).

The spelling of 230172220537 in words is "two hundred thirty billion, one hundred seventy-two million, two hundred twenty thousand, five hundred thirty-seven".