152553520121 has 4 divisors (see below), whose sum is σ = 153651027600. Its totient is φ = 151456012644.

The previous prime is 152553520117. The next prime is 152553520157. The reversal of 152553520121 is 121025355251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 152553520121 - 2² = 152553520117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152553526121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548753531 + ... + 548753808.

It is an arithmetic number, because the mean of its divisors is an integer number (38412756900).

Almost surely, 2^152553520121 is an apocalyptic number.

It is an amenable number.

152553520121 is a deficient number, since it is larger than the sum of its proper divisors (1097507479).

152553520121 is a wasteful number, since it uses less digits than its factorization.

152553520121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097507478.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 152553520121 its reverse (121025355251), we get a palindrome (273578875372).

The spelling of 152553520121 in words is "one hundred fifty-two billion, five hundred fifty-three million, five hundred twenty thousand, one hundred twenty-one".