150974561 has 2 divisors, whose sum is σ = 150974562. Its totient is φ = 150974560.

The previous prime is 150974533. The next prime is 150974563. The reversal of 150974561 is 165479051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148084561 + 2890000 = 12169^2 + 1700^2 .

It is an emirp because it is prime and its reverse (165479051) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150974561 is a prime.

Together with 150974563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (150974563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75487280 + 75487281.

It is an arithmetic number, because the mean of its divisors is an integer number (75487281).

Almost surely, 2^150974561 is an apocalyptic number.

It is an amenable number.

150974561 is a deficient number, since it is larger than the sum of its proper divisors (1).

150974561 is an equidigital number, since it uses as much as digits as its factorization.

150974561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 150974561 is about 12287.1705856149. The cubic root of 150974561 is about 532.4774966061.

The spelling of 150974561 in words is "one hundred fifty million, nine hundred seventy-four thousand, five hundred sixty-one".