155430054 has 48 divisors (see below), whose sum is σ = 364068432. Its totient is φ = 47640384.

The previous prime is 155430047. The next prime is 155430071. The reversal of 155430054 is 450034551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67429 + ... + 69695.

It is an arithmetic number, because the mean of its divisors is an integer number (7584759).

Almost surely, 2^155430054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155430054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182034216).

155430054 is an abundant number, since it is smaller than the sum of its proper divisors (208638378).

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

155430054 is a wasteful number, since it uses less digits than its factorization.

155430054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581 (or 2578 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 155430054 is about 12467.1590187981. The cubic root of 155430054 is about 537.6648756143.

The spelling of 155430054 in words is "one hundred fifty-five million, four hundred thirty thousand, fifty-four".