155554146 has 24 divisors (see below), whose sum is σ = 367673904. Its totient is φ = 47137560.

The previous prime is 155554141. The next prime is 155554153. The reversal of 155554146 is 641455551.

155554146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155554146.

It is not an unprimeable number, because it can be changed into a prime (155554141) 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 11 ways as a sum of consecutive naturals, for example, 392616 + ... + 393011.

It is an arithmetic number, because the mean of its divisors is an integer number (15319746).

Almost surely, 2^155554146 is an apocalyptic number.

155554146 is an abundant number, since it is smaller than the sum of its proper divisors (212119758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155554146 is a wasteful number, since it uses less digits than its factorization.

155554146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785646 (or 785643 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 155554146 is about 12472.1347811832. The cubic root of 155554146 is about 537.8079242290.

It can be divided in two parts, 15555 and 4146, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 155554146 in words is "one hundred fifty-five million, five hundred fifty-four thousand, one hundred forty-six".