153125909 has 2 divisors, whose sum is σ = 153125910. Its totient is φ = 153125908.

The previous prime is 153125879. The next prime is 153125911. The reversal of 153125909 is 909521351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140896900 + 12229009 = 11870^2 + 3497^2 .

It is a cyclic number.

It is not a de Polignac number, because 153125909 - 2⁸ = 153125653 is a prime.

Together with 153125911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153125989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76562954 + 76562955.

It is an arithmetic number, because the mean of its divisors is an integer number (76562955).

Almost surely, 2^153125909 is an apocalyptic number.

It is an amenable number.

153125909 is a deficient number, since it is larger than the sum of its proper divisors (1).

153125909 is an equidigital number, since it uses as much as digits as its factorization.

153125909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 153125909 is about 12374.4053998566. The cubic root of 153125909 is about 534.9947989130.

The spelling of 153125909 in words is "one hundred fifty-three million, one hundred twenty-five thousand, nine hundred nine".