150451261 has 2 divisors, whose sum is σ = 150451262. Its totient is φ = 150451260.

The previous prime is 150451243. The next prime is 150451271. The reversal of 150451261 is 162154051.

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., 83375161 + 67076100 = 9131^2 + 8190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150451261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150451271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75225630 + 75225631.

It is an arithmetic number, because the mean of its divisors is an integer number (75225631).

Almost surely, 2^150451261 is an apocalyptic number.

It is an amenable number.

150451261 is a deficient number, since it is larger than the sum of its proper divisors (1).

150451261 is an equidigital number, since it uses as much as digits as its factorization.

150451261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 150451261 is about 12265.8575321907. The cubic root of 150451261 is about 531.8615693586.

The spelling of 150451261 in words is "one hundred fifty million, four hundred fifty-one thousand, two hundred sixty-one".