150126409 has 2 divisors, whose sum is σ = 150126410. Its totient is φ = 150126408.

The previous prime is 150126407. The next prime is 150126419. The reversal of 150126409 is 904621051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76510009 + 73616400 = 8747^2 + 8580^2 .

It is a cyclic number.

It is not a de Polignac number, because 150126409 - 2¹ = 150126407 is a prime.

Together with 150126407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (150126407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75063204 + 75063205.

It is an arithmetic number, because the mean of its divisors is an integer number (75063205).

Almost surely, 2^150126409 is an apocalyptic number.

It is an amenable number.

150126409 is a deficient number, since it is larger than the sum of its proper divisors (1).

150126409 is an equidigital number, since it uses as much as digits as its factorization.

150126409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 150126409 is about 12252.6082529395. The cubic root of 150126409 is about 531.4784978028.

The spelling of 150126409 in words is "one hundred fifty million, one hundred twenty-six thousand, four hundred nine".