165357454 has 4 divisors (see below), whose sum is σ = 248036184. Its totient is φ = 82678726.

The previous prime is 165357443. The next prime is 165357463. The reversal of 165357454 is 454753561.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41339362 + ... + 41339365.

It is an arithmetic number, because the mean of its divisors is an integer number (62009046).

Almost surely, 2^165357454 is an apocalyptic number.

165357454 is a deficient number, since it is larger than the sum of its proper divisors (82678730).

165357454 is an equidigital number, since it uses as much as digits as its factorization.

165357454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82678729.

The product of its digits is 252000, while the sum is 40.

The square root of 165357454 is about 12859.1389291818. The cubic root of 165357454 is about 548.8764435182.

The spelling of 165357454 in words is "one hundred sixty-five million, three hundred fifty-seven thousand, four hundred fifty-four".