151532501551121 has 4 divisors (see below), whose sum is σ = 151812598597044. Its totient is φ = 151252404505200.

The previous prime is 151532501551073. The next prime is 151532501551147. The reversal of 151532501551121 is 121155105235151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 120329820555025 + 31202680996096 = 10969495^2 + 5585936^2 .

It is a cyclic number.

It is not a de Polignac number, because 151532501551121 - 2³⁴ = 151515321681937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151532501551181) 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, 140048522150 + ... + 140048523231.

It is an arithmetic number, because the mean of its divisors is an integer number (37953149649261).

Almost surely, 2^{151532501551121} is an apocalyptic number.

It is an amenable number.

151532501551121 is a deficient number, since it is larger than the sum of its proper divisors (280097045923).

151532501551121 is an equidigital number, since it uses as much as digits as its factorization.

151532501551121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280097045922.

The product of its (nonzero) digits is 37500, while the sum is 38.

Adding to 151532501551121 its reverse (121155105235151), we get a palindrome (272687606786272).

The spelling of 151532501551121 in words is "one hundred fifty-one trillion, five hundred thirty-two billion, five hundred one million, five hundred fifty-one thousand, one hundred twenty-one".