154850609 has 2 divisors, whose sum is σ = 154850610. Its totient is φ = 154850608.

The previous prime is 154850557. The next prime is 154850617. The reversal of 154850609 is 906058451.

154850609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114490000 + 40360609 = 10700^2 + 6353^2 .

It is a cyclic number.

It is not a de Polignac number, because 154850609 - 2¹² = 154846513 is a prime.

It is a super-2 number, since 2×154850609² = 47957422215341762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154850629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77425304 + 77425305.

It is an arithmetic number, because the mean of its divisors is an integer number (77425305).

Almost surely, 2^154850609 is an apocalyptic number.

It is an amenable number.

154850609 is a deficient number, since it is larger than the sum of its proper divisors (1).

154850609 is an equidigital number, since it uses as much as digits as its factorization.

154850609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 154850609 is about 12443.8984647095. The cubic root of 154850609 is about 536.9959033657.

The spelling of 154850609 in words is "one hundred fifty-four million, eight hundred fifty thousand, six hundred nine".