153630193 has 4 divisors (see below), whose sum is σ = 153684388. Its totient is φ = 153576000.

The previous prime is 153630161. The next prime is 153630221. The reversal of 153630193 is 391036351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391036351 = 6067 ⋅64453.

It can be written as a sum of positive squares in 2 ways, for example, as 34012224 + 119617969 = 5832^2 + 10937^2 .

It is a cyclic number.

It is not a de Polignac number, because 153630193 - 2⁵ = 153630161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153630793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22596 + ... + 28597.

It is an arithmetic number, because the mean of its divisors is an integer number (38421097).

Almost surely, 2^153630193 is an apocalyptic number.

It is an amenable number.

153630193 is a deficient number, since it is larger than the sum of its proper divisors (54195).

153630193 is an equidigital number, since it uses as much as digits as its factorization.

153630193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54194.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 153630193 is about 12394.7647416157. The cubic root of 153630193 is about 535.5814483728.

The spelling of 153630193 in words is "one hundred fifty-three million, six hundred thirty thousand, one hundred ninety-three".