150221055949 has 2 divisors, whose sum is σ = 150221055950. Its totient is φ = 150221055948.

The previous prime is 150221055899. The next prime is 150221055961. The reversal of 150221055949 is 949550122051.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120277176100 + 29943879849 = 346810^2 + 173043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150221055949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150221055989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75110527974 + 75110527975.

It is an arithmetic number, because the mean of its divisors is an integer number (75110527975).

Almost surely, 2^150221055949 is an apocalyptic number.

It is an amenable number.

150221055949 is a deficient number, since it is larger than the sum of its proper divisors (1).

150221055949 is an equidigital number, since it uses as much as digits as its factorization.

150221055949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 150221055949 in words is "one hundred fifty billion, two hundred twenty-one million, fifty-five thousand, nine hundred forty-nine".