153105520 has 20 divisors (see below), whose sum is σ = 355970520. Its totient is φ = 61242176.

The previous prime is 153105509. The next prime is 153105527. The reversal of 153105520 is 25501351.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 153105491 and 153105500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153105527) 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, 956830 + ... + 956989.

It is an arithmetic number, because the mean of its divisors is an integer number (17798526).

Almost surely, 2^153105520 is an apocalyptic number.

153105520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153105520 is an abundant number, since it is smaller than the sum of its proper divisors (202865000).

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

153105520 is a wasteful number, since it uses less digits than its factorization.

153105520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913832 (or 1913826 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 153105520 is about 12373.5815348669. The cubic root of 153105520 is about 534.9710526743.

Adding to 153105520 its reverse (25501351), we get a palindrome (178606871).

The spelling of 153105520 in words is "one hundred fifty-three million, one hundred five thousand, five hundred twenty".