155471379 has 16 divisors (see below), whose sum is σ = 237838848. Its totient is φ = 88492032.

The previous prime is 155471377. The next prime is 155471383. The reversal of 155471379 is 973174551.

It is not a de Polignac number, because 155471379 - 2¹ = 155471377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155471379.

It is not an unprimeable number, because it can be changed into a prime (155471377) 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 in 15 ways as a sum of consecutive naturals, for example, 9007 + ... + 19800.

It is an arithmetic number, because the mean of its divisors is an integer number (14864928).

Almost surely, 2^155471379 is an apocalyptic number.

155471379 is a deficient number, since it is larger than the sum of its proper divisors (82367469).

155471379 is a wasteful number, since it uses less digits than its factorization.

155471379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29074.

The product of its digits is 132300, while the sum is 42.

The square root of 155471379 is about 12468.8162629818. The cubic root of 155471379 is about 537.7125219812.

The spelling of 155471379 in words is "one hundred fifty-five million, four hundred seventy-one thousand, three hundred seventy-nine".