153605005 has 4 divisors (see below), whose sum is σ = 184326012. Its totient is φ = 122884000.

The previous prime is 153604999. The next prime is 153605009. The reversal of 153605005 is 500506351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500506351 = 83 ⋅6030197.

It can be written as a sum of positive squares in 2 ways, for example, as 48706441 + 104898564 = 6979^2 + 10242^2 .

It is not a de Polignac number, because 153605005 - 2¹³ = 153596813 is a prime.

It is a super-2 number, since 2×153605005² = 47188995122100050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153605009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15360496 + ... + 15360505.

It is an arithmetic number, because the mean of its divisors is an integer number (46081503).

Almost surely, 2^153605005 is an apocalyptic number.

It is an amenable number.

153605005 is a deficient number, since it is larger than the sum of its proper divisors (30721007).

153605005 is an equidigital number, since it uses as much as digits as its factorization.

153605005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30721006.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 153605005 is about 12393.7486258194. The cubic root of 153605005 is about 535.5521768635.

The spelling of 153605005 in words is "one hundred fifty-three million, six hundred five thousand, five".