153136240 has 80 divisors (see below), whose sum is σ = 371628000. Its totient is φ = 58612736.

The previous prime is 153136183. The next prime is 153136241. The reversal of 153136240 is 42631351.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153136241) 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, 345459 + ... + 345901.

It is an arithmetic number, because the mean of its divisors is an integer number (4645350).

Almost surely, 2^153136240 is an apocalyptic number.

153136240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153136240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185814000).

153136240 is an abundant number, since it is smaller than the sum of its proper divisors (218491760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153136240 is a wasteful number, since it uses less digits than its factorization.

153136240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 153136240 is about 12374.8228270145. The cubic root of 153136240 is about 535.0068302037.

Adding to 153136240 its reverse (42631351), we get a palindrome (195767591).

The spelling of 153136240 in words is "one hundred fifty-three million, one hundred thirty-six thousand, two hundred forty".