155584379 has 2 divisors, whose sum is σ = 155584380. Its totient is φ = 155584378.

The previous prime is 155584349. The next prime is 155584393. The reversal of 155584379 is 973485551.

155584379 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 is a cyclic number.

It is not a de Polignac number, because 155584379 - 2²⁰ = 154535803 is a prime.

It is not a weakly prime, because it can be changed into another prime (155584349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77792189 + 77792190.

It is an arithmetic number, because the mean of its divisors is an integer number (77792190).

Almost surely, 2^155584379 is an apocalyptic number.

155584379 is a deficient number, since it is larger than the sum of its proper divisors (1).

155584379 is an equidigital number, since it uses as much as digits as its factorization.

155584379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 47.

The square root of 155584379 is about 12473.3467441581. The cubic root of 155584379 is about 537.8427641741.

The spelling of 155584379 in words is "one hundred fifty-five million, five hundred eighty-four thousand, three hundred seventy-nine".