155343379 has 2 divisors, whose sum is σ = 155343380. Its totient is φ = 155343378.

The previous prime is 155343329. The next prime is 155343389. The reversal of 155343379 is 973343551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155343379 - 2¹¹ = 155341331 is a prime.

It is not a weakly prime, because it can be changed into another prime (155343329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77671689 + 77671690.

It is an arithmetic number, because the mean of its divisors is an integer number (77671690).

Almost surely, 2^155343379 is an apocalyptic number.

155343379 is a deficient number, since it is larger than the sum of its proper divisors (1).

155343379 is an equidigital number, since it uses as much as digits as its factorization.

155343379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170100, while the sum is 40.

The square root of 155343379 is about 12463.6824012809. The cubic root of 155343379 is about 537.5649147486.

The spelling of 155343379 in words is "one hundred fifty-five million, three hundred forty-three thousand, three hundred seventy-nine".