150340681 has 2 divisors, whose sum is σ = 150340682. Its totient is φ = 150340680.

The previous prime is 150340643. The next prime is 150340691. The reversal of 150340681 is 186043051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150283081 + 57600 = 12259^2 + 240^2 .

It is an emirp because it is prime and its reverse (186043051) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150340681 is a prime.

It is a super-2 number, since 2×150340681² = 45204640727087522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150340601) 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, 75170340 + 75170341.

It is an arithmetic number, because the mean of its divisors is an integer number (75170341).

Almost surely, 2^150340681 is an apocalyptic number.

It is an amenable number.

150340681 is a deficient number, since it is larger than the sum of its proper divisors (1).

150340681 is an equidigital number, since it uses as much as digits as its factorization.

150340681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 150340681 is about 12261.3490693316. The cubic root of 150340681 is about 531.7312333130.

The spelling of 150340681 in words is "one hundred fifty million, three hundred forty thousand, six hundred eighty-one".