153240213 has 16 divisors (see below), whose sum is σ = 236710016. Its totient is φ = 86365440.

The previous prime is 153240203. The next prime is 153240251. The reversal of 153240213 is 312042351.

It is not a de Polignac number, because 153240213 - 2⁵ = 153240181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153240213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153240203) 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, 48448 + ... + 51513.

It is an arithmetic number, because the mean of its divisors is an integer number (14794376).

Almost surely, 2^153240213 is an apocalyptic number.

It is an amenable number.

153240213 is a deficient number, since it is larger than the sum of its proper divisors (83469803).

153240213 is an equidigital number, since it uses as much as digits as its factorization.

153240213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100044.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 153240213 is about 12379.0231036217. The cubic root of 153240213 is about 535.1278851123.

Adding to 153240213 its reverse (312042351), we get a palindrome (465282564).

The spelling of 153240213 in words is "one hundred fifty-three million, two hundred forty thousand, two hundred thirteen".