152521998 has 8 divisors (see below), whose sum is σ = 305044008. Its totient is φ = 50840664.

The previous prime is 152521997. The next prime is 152522081. The reversal of 152521998 is 899125251.

It is a sphenic number, since it is the product of 3 distinct primes.

152521998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152521997) 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, 12710161 + ... + 12710172.

It is an arithmetic number, because the mean of its divisors is an integer number (38130501).

Almost surely, 2^152521998 is an apocalyptic number.

152521998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

152521998 is a wasteful number, since it uses less digits than its factorization.

152521998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25420338.

The product of its digits is 64800, while the sum is 42.

The square root of 152521998 is about 12349.9796760966. The cubic root of 152521998 is about 534.2905529289.

The spelling of 152521998 in words is "one hundred fifty-two million, five hundred twenty-one thousand, nine hundred ninety-eight".