155940359 has 2 divisors, whose sum is σ = 155940360. Its totient is φ = 155940358.

The previous prime is 155940349. The next prime is 155940373. The reversal of 155940359 is 953049551.

It is a happy number.

155940359 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155940359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155940329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77970179 + 77970180.

It is an arithmetic number, because the mean of its divisors is an integer number (77970180).

Almost surely, 2^155940359 is an apocalyptic number.

155940359 is a deficient number, since it is larger than the sum of its proper divisors (1).

155940359 is an equidigital number, since it uses as much as digits as its factorization.

155940359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 155940359 is about 12487.6082177493. The cubic root of 155940359 is about 538.2526498610.

The spelling of 155940359 in words is "one hundred fifty-five million, nine hundred forty thousand, three hundred fifty-nine".