151054323521 has 4 divisors (see below), whose sum is σ = 151056797892. Its totient is φ = 151051849152.

The previous prime is 151054323491. The next prime is 151054323527. The reversal of 151054323521 is 125323450151.

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 87128280625 + 63926042896 = 295175^2 + 252836^2 .

It is a cyclic number.

It is not a de Polignac number, because 151054323521 - 2¹⁸ = 151054061377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151054323527) 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, 1143236 + ... + 1268501.

It is an arithmetic number, because the mean of its divisors is an integer number (37764199473).

Almost surely, 2^151054323521 is an apocalyptic number.

It is an amenable number.

151054323521 is a deficient number, since it is larger than the sum of its proper divisors (2474371).

151054323521 is an equidigital number, since it uses as much as digits as its factorization.

151054323521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474370.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 151054323521 its reverse (125323450151), we get a palindrome (276377773672).

The spelling of 151054323521 in words is "one hundred fifty-one billion, fifty-four million, three hundred twenty-three thousand, five hundred twenty-one".