152438489 has 4 divisors (see below), whose sum is σ = 174215424. Its totient is φ = 130661556.

The previous prime is 152438453. The next prime is 152438497. The reversal of 152438489 is 984834251.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-152438489 is a prime.

It is a super-3 number, since 3×152438489³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152438449) 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, 10888457 + ... + 10888470.

It is an arithmetic number, because the mean of its divisors is an integer number (43553856).

Almost surely, 2^152438489 is an apocalyptic number.

It is an amenable number.

152438489 is a deficient number, since it is larger than the sum of its proper divisors (21776935).

152438489 is an equidigital number, since it uses as much as digits as its factorization.

152438489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21776934.

The product of its digits is 276480, while the sum is 44.

The square root of 152438489 is about 12346.5982764485. The cubic root of 152438489 is about 534.1930233574.

It can be divided in two parts, 15243 and 8489, that added together give a palindrome (23732).

The spelling of 152438489 in words is "one hundred fifty-two million, four hundred thirty-eight thousand, four hundred eighty-nine".