153940309 has 2 divisors, whose sum is σ = 153940310. Its totient is φ = 153940308.

The previous prime is 153940273. The next prime is 153940333. The reversal of 153940309 is 903049351.

153940309 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., 146531025 + 7409284 = 12105^2 + 2722^2 .

It is a cyclic number.

It is not a de Polignac number, because 153940309 - 2¹¹ = 153938261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153940379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76970154 + 76970155.

It is an arithmetic number, because the mean of its divisors is an integer number (76970155).

Almost surely, 2^153940309 is an apocalyptic number.

It is an amenable number.

153940309 is a deficient number, since it is larger than the sum of its proper divisors (1).

153940309 is an equidigital number, since it uses as much as digits as its factorization.

153940309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 153940309 is about 12407.2683939697. The cubic root of 153940309 is about 535.9415788502.

The spelling of 153940309 in words is "one hundred fifty-three million, nine hundred forty thousand, three hundred nine".