165240230 has 16 divisors (see below), whose sum is σ = 307027584. Its totient is φ = 63963840.

The previous prime is 165240227. The next prime is 165240253. The reversal of 165240230 is 32042561.

It is a super-2 number, since 2×165240230² = 54608667220905800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165240196 and 165240205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266207 + ... + 266826.

It is an arithmetic number, because the mean of its divisors is an integer number (19189224).

Almost surely, 2^165240230 is an apocalyptic number.

165240230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165240230 is a deficient number, since it is larger than the sum of its proper divisors (141787354).

165240230 is a wasteful number, since it uses less digits than its factorization.

165240230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533071.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 165240230 is about 12854.5801176079. The cubic root of 165240230 is about 548.7467110289.

Adding to 165240230 its reverse (32042561), we get a palindrome (197282791).

The spelling of 165240230 in words is "one hundred sixty-five million, two hundred forty thousand, two hundred thirty".