153121530 has 16 divisors (see below), whose sum is σ = 367491744. Its totient is φ = 40832400.

The previous prime is 153121523. The next prime is 153121541. The reversal of 153121530 is 35121351.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 153121497 and 153121506.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2551996 + ... + 2552055.

It is an arithmetic number, because the mean of its divisors is an integer number (22968234).

Almost surely, 2^153121530 is an apocalyptic number.

153121530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

153121530 is an abundant number, since it is smaller than the sum of its proper divisors (214370214).

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

153121530 is a wasteful number, since it uses less digits than its factorization.

153121530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5104061.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 153121530 is about 12374.2284607971. The cubic root of 153121530 is about 534.9896990476.

Adding to 153121530 its reverse (35121351), we get a palindrome (188242881).

The spelling of 153121530 in words is "one hundred fifty-three million, one hundred twenty-one thousand, five hundred thirty".