165047354 has 4 divisors (see below), whose sum is σ = 247571034. Its totient is φ = 82523676.

The previous prime is 165047341. The next prime is 165047359. The reversal of 165047354 is 453740561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453740561 = 3461 ⋅131101.

It can be written as a sum of positive squares in only one way, i.e., 108722329 + 56325025 = 10427^2 + 7505^2 .

It is not an unprimeable number, because it can be changed into a prime (165047359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41261837 + ... + 41261840.

Almost surely, 2^165047354 is an apocalyptic number.

165047354 is a deficient number, since it is larger than the sum of its proper divisors (82523680).

165047354 is an equidigital number, since it uses as much as digits as its factorization.

165047354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82523679.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 165047354 is about 12847.0756983837. The cubic root of 165047354 is about 548.5331204325.

The spelling of 165047354 in words is "one hundred sixty-five million, forty-seven thousand, three hundred fifty-four".