165303455 has 4 divisors (see below), whose sum is σ = 198364152. Its totient is φ = 132242760.

The previous prime is 165303409. The next prime is 165303487. The reversal of 165303455 is 554303561.

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

It is a de Polignac number, because none of the positive numbers 2^k-165303455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16530341 + ... + 16530350.

It is an arithmetic number, because the mean of its divisors is an integer number (49591038).

Almost surely, 2^165303455 is an apocalyptic number.

165303455 is a deficient number, since it is larger than the sum of its proper divisors (33060697).

165303455 is an equidigital number, since it uses as much as digits as its factorization.

165303455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33060696.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 165303455 is about 12857.0391225974. The cubic root of 165303455 is about 548.8166901269.

The spelling of 165303455 in words is "one hundred sixty-five million, three hundred three thousand, four hundred fifty-five".