150251261 has 2 divisors, whose sum is σ = 150251262. Its totient is φ = 150251260.

The previous prime is 150251243. The next prime is 150251293. The reversal of 150251261 is 162152051.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139688761 + 10562500 = 11819^2 + 3250^2 .

It is an emirp because it is prime and its reverse (162152051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150251261 - 2²² = 146056957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150251461) 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, 75125630 + 75125631.

It is an arithmetic number, because the mean of its divisors is an integer number (75125631).

Almost surely, 2^150251261 is an apocalyptic number.

It is an amenable number.

150251261 is a deficient number, since it is larger than the sum of its proper divisors (1).

150251261 is an equidigital number, since it uses as much as digits as its factorization.

150251261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 150251261 is about 12257.7021092862. The cubic root of 150251261 is about 531.6257909349.

The spelling of 150251261 in words is "one hundred fifty million, two hundred fifty-one thousand, two hundred sixty-one".