150661249 has 2 divisors, whose sum is σ = 150661250. Its totient is φ = 150661248.

The previous prime is 150661237. The next prime is 150661261. The reversal of 150661249 is 942166051.

It is a balanced prime because it is at equal distance from previous prime (150661237) and next prime (150661261).

It can be written as a sum of positive squares in only one way, i.e., 145371249 + 5290000 = 12057^2 + 2300^2 .

It is an emirp because it is prime and its reverse (942166051) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150661249 is a prime.

It is not a weakly prime, because it can be changed into another prime (150661289) 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, 75330624 + 75330625.

It is an arithmetic number, because the mean of its divisors is an integer number (75330625).

Almost surely, 2^150661249 is an apocalyptic number.

It is an amenable number.

150661249 is a deficient number, since it is larger than the sum of its proper divisors (1).

150661249 is an equidigital number, since it uses as much as digits as its factorization.

150661249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 150661249 is about 12274.4144055837. The cubic root of 150661249 is about 532.1088977992.

The spelling of 150661249 in words is "one hundred fifty million, six hundred sixty-one thousand, two hundred forty-nine".