150553121 has 2 divisors, whose sum is σ = 150553122. Its totient is φ = 150553120.

The previous prime is 150553103. The next prime is 150553129. The reversal of 150553121 is 121355051.

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., 108160000 + 42393121 = 10400^2 + 6511^2 .

It is a cyclic number.

It is not a de Polignac number, because 150553121 - 2⁶ = 150553057 is a prime.

It is not a weakly prime, because it can be changed into another prime (150553129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75276560 + 75276561.

It is an arithmetic number, because the mean of its divisors is an integer number (75276561).

Almost surely, 2^150553121 is an apocalyptic number.

It is an amenable number.

150553121 is a deficient number, since it is larger than the sum of its proper divisors (1).

150553121 is an equidigital number, since it uses as much as digits as its factorization.

150553121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 150553121 is about 12270.0090057017. The cubic root of 150553121 is about 531.9815710069.

The spelling of 150553121 in words is "one hundred fifty million, five hundred fifty-three thousand, one hundred twenty-one".