152784649 has 2 divisors, whose sum is σ = 152784650. Its totient is φ = 152784648.

The previous prime is 152784641. The next prime is 152784677. The reversal of 152784649 is 946487251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133818624 + 18966025 = 11568^2 + 4355^2 .

It is a cyclic number.

It is not a de Polignac number, because 152784649 - 2³ = 152784641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 152784599 and 152784608.

It is not a weakly prime, because it can be changed into another prime (152784641) 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, 76392324 + 76392325.

It is an arithmetic number, because the mean of its divisors is an integer number (76392325).

Almost surely, 2^152784649 is an apocalyptic number.

It is an amenable number.

152784649 is a deficient number, since it is larger than the sum of its proper divisors (1).

152784649 is an equidigital number, since it uses as much as digits as its factorization.

152784649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 152784649 is about 12360.6087633255. The cubic root of 152784649 is about 534.5970693087.

The spelling of 152784649 in words is "one hundred fifty-two million, seven hundred eighty-four thousand, six hundred forty-nine".