152390489 has 2 divisors, whose sum is σ = 152390490. Its totient is φ = 152390488.

The previous prime is 152390473. The next prime is 152390519. The reversal of 152390489 is 984093251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82500889 + 69889600 = 9083^2 + 8360^2 .

It is a cyclic number.

It is not a de Polignac number, because 152390489 - 2⁴ = 152390473 is a prime.

It is a super-2 number, since 2×152390489² = 46445722275318242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (152390989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76195244 + 76195245.

It is an arithmetic number, because the mean of its divisors is an integer number (76195245).

Almost surely, 2^152390489 is an apocalyptic number.

It is an amenable number.

152390489 is a deficient number, since it is larger than the sum of its proper divisors (1).

152390489 is an equidigital number, since it uses as much as digits as its factorization.

152390489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 152390489 is about 12344.6542681438. The cubic root of 152390489 is about 534.1369483746.

The spelling of 152390489 in words is "one hundred fifty-two million, three hundred ninety thousand, four hundred eighty-nine".