165357453 has 16 divisors (see below), whose sum is σ = 233720640. Its totient is φ = 103631616.

The previous prime is 165357443. The next prime is 165357463. The reversal of 165357453 is 354753561.

It is an interprime number because it is at equal distance from previous prime (165357443) and next prime (165357463).

It is not a de Polignac number, because 165357453 - 2⁶ = 165357389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165357443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63858 + ... + 66396.

It is an arithmetic number, because the mean of its divisors is an integer number (14607540).

Almost surely, 2^165357453 is an apocalyptic number.

It is an amenable number.

165357453 is a deficient number, since it is larger than the sum of its proper divisors (68363187).

165357453 is a wasteful number, since it uses less digits than its factorization.

165357453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836.

The product of its digits is 189000, while the sum is 39.

The square root of 165357453 is about 12859.1388902990. The cubic root of 165357453 is about 548.8764424117.

The spelling of 165357453 in words is "one hundred sixty-five million, three hundred fifty-seven thousand, four hundred fifty-three".