165312430 has 16 divisors (see below), whose sum is σ = 297793584. Its totient is φ = 66073600.

The previous prime is 165312421. The next prime is 165312443. The reversal of 165312430 is 34213561.

It is a junction number, because it is equal to n+sod(n) for n = 165312395 and 165312404.

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, 8814 + ... + 20206.

It is an arithmetic number, because the mean of its divisors is an integer number (18612099).

Almost surely, 2^165312430 is an apocalyptic number.

165312430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165312430 is a deficient number, since it is larger than the sum of its proper divisors (132481154).

165312430 is a wasteful number, since it uses less digits than its factorization.

165312430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12851.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 165312430 is about 12857.3881484538. The cubic root of 165312430 is about 548.8266224473.

Adding to 165312430 its reverse (34213561), we get a palindrome (199525991).

The spelling of 165312430 in words is "one hundred sixty-five million, three hundred twelve thousand, four hundred thirty".