152123521 has 8 divisors (see below), whose sum is σ = 167261184. Its totient is φ = 137203920.

The previous prime is 152123401. The next prime is 152123527. The reversal of 152123521 is 125321251.

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

It is a cyclic number.

It is not a de Polignac number, because 152123521 - 2²¹ = 150026369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152123492 and 152123501.

It is not an unprimeable number, because it can be changed into a prime (152123527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53050 + ... + 55843.

It is an arithmetic number, because the mean of its divisors is an integer number (20907648).

Almost surely, 2^152123521 is an apocalyptic number.

152123521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

152123521 is a deficient number, since it is larger than the sum of its proper divisors (15137663).

152123521 is a wasteful number, since it uses less digits than its factorization.

152123521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109031.

The product of its digits is 600, while the sum is 22.

The square root of 152123521 is about 12333.8364266760. The cubic root of 152123521 is about 533.8248536029.

Adding to 152123521 its reverse (125321251), we get a palindrome (277444772).

The spelling of 152123521 in words is "one hundred fifty-two million, one hundred twenty-three thousand, five hundred twenty-one".