152342521 has 8 divisors (see below), whose sum is σ = 153352584. Its totient is φ = 151336320.

The previous prime is 152342483. The next prime is 152342537. The reversal of 152342521 is 125243251.

It can be written as a sum of positive squares in 4 ways, for example, as 2524921 + 149817600 = 1589^2 + 12240^2 .

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 152342521 - 2¹¹ = 152340473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152342591) 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, 127101 + ... + 128293.

It is an arithmetic number, because the mean of its divisors is an integer number (19169073).

Almost surely, 2^152342521 is an apocalyptic number.

It is an amenable number.

152342521 is a deficient number, since it is larger than the sum of its proper divisors (1010063).

152342521 is a wasteful number, since it uses less digits than its factorization.

152342521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931.

The product of its digits is 2400, while the sum is 25.

The square root of 152342521 is about 12342.7112499645. The cubic root of 152342521 is about 534.0808990108.

Adding to 152342521 its reverse (125243251), we get a palindrome (277585772).

It can be divided in two parts, 1523 and 42521, that added together give a palindrome (44044).

The spelling of 152342521 in words is "one hundred fifty-two million, three hundred forty-two thousand, five hundred twenty-one".